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社区管理 发表于 2022-12-17 13:27

二次感染比例究竟有多高？

<p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);">为何有人会出现“复阳”的情况？感染新冠病毒后会不会二次感染？首都医科大学附属北京佑安医院感染综合科主任医师李侗曾12月16日进行了解读。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);">“根据这三年我们的观察，‘复阳’的人在解除隔离后，自身的症状没有反复，也不会传染给身边的人，所以我们并没有要求后续的检测。”李侗曾说，</span><span style="color: rgb(0, 122, 170);"><strong><span style="font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);">“复阳”一般认为检出的是体内病毒的一些片段，它没有传染性，也没有致病力。</span><br/></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">很多已经感染过新冠病毒的市民担心，短期内会不会被二次感染。对此，李侗曾表示大家可以放宽心。虽然国外很多人在不同毒株暴发时会遭遇二次感染，但目前奥密克戎变异株的几百个亚分支都属于“近亲”，在机体抗体水平比较高的情况下，对变异不太明显的病毒变异株仍有保护作用。</span><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);color: rgb(0, 122, 170);box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong>一般认为免疫力正常的人群，在3至6个月内不会二次感染。</strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">不过，</span><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);color: rgb(0, 122, 170);box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong>免疫力低下的人群确实存在二次感染风险</strong></span><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">。如果病毒自身出现了比较明显的变异，也会导致机体内抗体的保护能力下降，提升二次感染风险。从目前的研究数据来看，即使遭遇二次感染，机体症状也会更轻、恢复更快。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">“所以从这一点上来说，我们今后还是要继续保持这三年来养成的良好卫生习惯。”李侗曾表示，康复后，戴口罩、勤洗手、多开窗通风、注意社交距离、保持咳嗽礼仪等好习惯还要继续坚持。口罩除了能够防护新冠病毒外，对于其他呼吸道传染病也有良好的保护效果，近三年来，各类呼吸道传染病的发病率都有所下降。</span><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);color: rgb(0, 122, 170);box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong>目前尚未感染的市民，近一两个月最好佩戴N95或KN95等高级别防护口罩，尽量少聚会，并建议尽快完成疫苗接种，有条件的可以完成第二次加强接种。</strong></span></p><p><section style="margin-bottom: 0em;outline: 0px;max-width: 100%;box-sizing: border-box;white-space: normal;color: rgb(34, 34, 34);letter-spacing: 0.544px;font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;caret-color: rgb(34, 34, 34);background-color: rgb(255, 255, 255);visibility: visible;overflow-wrap: break-word !important;"><section style="outline: 0px;max-width: 100%;box-sizing: border-box;text-align: center;visibility: visible;line-height: 2em;overflow-wrap: break-word !important;"><section style="outline: 0px;max-width: 100%;box-sizing: border-box;display: inline-block;vertical-align: middle;visibility: visible;overflow-wrap: break-word !important;"><section style="outline: 0px;max-width: 100%;box-sizing: border-box;font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;font-size: 16px;border-left: 2px solid rgb(68, 177, 247);border-top: 2px solid rgb(68, 177, 247);border-right-color: rgb(68, 177, 247);border-bottom-color: rgb(68, 177, 247);width: 12px;height: 12px;visibility: visible;overflow-wrap: break-word !important;"><section style="outline: 0px;max-width: 100%;visibility: visible;box-sizing: border-box !important;overflow-wrap: break-word !important;"><svg viewbox="0 0 1 1" style="float: left;line-height: 0;width: 0px;vertical-align: top;visibility: visible;"></svg></section></section><section style="margin-top: -8px;margin-bottom: -8px;padding-right: 10px;padding-left: 10px;outline: 0px;max-width: 100%;box-sizing: border-box;visibility: visible;overflow-wrap: break-word !important;"><section style="outline: 0px;max-width: 100%;box-sizing: border-box;visibility: visible;overflow-wrap: break-word !important;"><section style="outline: 0px;max-width: 100%;line-height: 2em;visibility: visible;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="letter-spacing: 0.544px;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;box-sizing: border-box !important;overflow-wrap: break-word !important;">二次感染比例究竟有多高？</span></strong></section></section></section><section style="margin-left: auto;outline: 0px;max-width: 100%;box-sizing: border-box;font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;font-size: 16px;border-right: 2px solid rgb(68, 177, 247);border-top-color: rgb(68, 177, 247);border-bottom: 2px solid rgb(68, 177, 247);border-left-color: rgb(68, 177, 247);width: 12px;height: 12px;visibility: visible;overflow-wrap: break-word !important;"><br style="outline: 0px;max-width: 100%;visibility: visible;box-sizing: border-box !important;overflow-wrap: break-word !important;"/></section></section></section></section><section style="margin-bottom: 0px;outline: 0px;max-width: 100%;line-height: 2em;visibility: visible;box-sizing: border-box !important;overflow-wrap: break-word !important;"><br style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);visibility: visible;box-sizing: border-box !important;overflow-wrap: break-word !important;"/></section></p><h1 style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="font-size: 17px;"><span style="font-size: 17px;outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">那么，二次感染比例究竟有多高？据微信公众号“上观新闻” 报道，</span>二次感染，是指在一定时间跨度后，感染者康复后再次出现新冠症状、体内病毒量回升的现象。相较于复阳，二次感染者体内病毒量相对较高，CT值一般低于35，而复阳<span style="font-size: 17px;letter-spacing: 0.544px;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;text-align: start;caret-color: rgb(34, 34, 34);">者一般高于35。</span></span></h1><h1 style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"></span></h1><p><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">此外，二次感染的时间跨度较长，一般在3个月以上，但随着感染次数的增多，时间跨度也将缩短。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据美国华盛顿大学医学院的报告，第一次和第二次感染间隔中位数为79天（48天-119天），第二次和第三次感染间隔中位数为65天（43天-97天）。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">那么，与此前毒株相比，奥密克戎导致的二次感染率更高吗？重复感染带来的影响是否会更大呢？</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;text-align: center;"><span style="color: rgb(0, 122, 170);"><strong><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">奥密克戎更易二次感染</span></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据15篇相关学术报告，奥密克戎更易导致二次感染。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">以意大利费拉拉大学今年7月底发布的报告为例，研究者收集了来自亚洲、欧洲、北美洲等数个国家91项研究数据，时间跨度为2020年8月至2022年6月，包含1500万名参与者数据。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">研究发现，新冠病毒的二次感染率在逐渐提高，早期毒株Alpha的二次感染为0.57%，德尔塔的二次感染增加至1.25%，而奥密克戎的二次感染率是Alpha的5.8倍，达到3.31%。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">但即使这样，也有最少约85%的民众不会二次感染。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">从实际数据上来看，英国在进入奥密克戎阶段前（2022年前），累计二次感染人数并不多，截至2021年12月13日，累计二次感染人数为9.7万人，占当时总感染数的0.1%。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">而进入2022年后，二次感染人数激增，截至2022年12月7人，累计二次感染人数已达到137万人，占总感染人数的6.75%。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">从时间分布上来看，二次感染的新增人数在逐渐减少。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">英国二次感染主要集中在第一波奥密克戎阶段，峰值曾达到2万人，即一天内便有2万人二次感染。而在后续几波疫情中，二次感染的新增人数逐渐下降，目前平均每天有1千人。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;text-align: center;"><span style="color: rgb(0, 122, 170);"><strong><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">相同毒株二次感染机率小</span></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">哪些因素会增加二次感染的机率？</span><span style="font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);">首先，与首次感染的毒株有关。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">由于新冠病毒不断变异，不同谱系毒株间存在一定差异，同一毒株引发的二次感染机率较小。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据英国国家统计局的数据，若感染者首次感染的便是奥密克戎BA.4/BA.5，再次感染这一毒株的人群占比仅为0.7%。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">但若感染者首次感染的毒株为德尔塔，或是奥密克戎BA.2，那么再次感染奥密克戎BA.4/BA.5的机率便较大。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;text-align: center;"><span style="color: rgb(0, 122, 170);"><strong><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">抗体有效性随时间递减</span></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="color: rgb(0, 122, 170);"><strong><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">其次，二次感染风险和感染时间也有关系。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据12篇相关学术报告，距离首次感染时间越远，体内抗体的保护作用越弱，便越容易发生二次感染。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据欧洲疾病预防控制中心今年9月在《柳叶刀》发表的论文，在感染奥密克戎3到5个月间，体内抗体的保护性为51%，而当距离首次感染6个月后，体内抗体的保护性已低于25%。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">此外，与Alpha、德尔塔相比，感染奥密克戎后抗体保护性的下降幅度更大。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">在感染Alpha、德尔塔后的3至5个月，感染者体内抗体的有效性仍分别达到86.6%、91.3%，此后下降幅度有限，最低值依旧在60%以上。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;text-align: center;"><span style="color: rgb(0, 122, 170);"><strong><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;text-align: center;"><span style="color: rgb(0, 122, 170);"><strong><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">特定职业更易感染</span></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">二次感染的风险还和职业有关。</span><span style="letter-spacing: 0.544px;outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">常暴露在病毒环境的医疗机构工作人员更易二次感染，</span><span style="letter-spacing: 0.544px;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;text-align: start;caret-color: rgb(34, 34, 34);">在《柳叶刀-区域健康（东南亚）》今年8月发表的相关论文中，调查了2021年12月1日至2022年2月25日印度医护人员 (HCW) 的感染和再感染密度。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">据统计，学生、行政/文职人员的二次感染率为15.4%，与之相比，护理人员的二次感染率最高，占统计人数的40.8%，医师的二次感染率也达38.6%。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">相较于学生、行政/文职人员，医师的二次感染风险是其2.71倍，而护理人员的风险则达到2.89倍。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">性别对二次感染的影响较小。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;text-align: center;"><span style="color: rgb(0, 122, 170);"><strong><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">年轻人更容易二次感染</span></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">而从年龄上来看，根据8篇学术报告，相较于老年群体，年轻群体更容易二次感染。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">法国国家公共卫生机构在今年3月发表的论文中观察了法国2021年3月2日至2022年2月20日二次感染情况，据统计，累计二次感染人数达到58.4万人，占总感染人数的3.1%，其中99.1%为二次感染、0.9%为三次感染。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">而在二次感染的患者中，18岁至40岁的占比最大，为51.1%，其次是低于18岁、41岁至60岁人员，二次感染的占比分别为23.6%、20%。而老年群体的占比较低，61岁至80岁的占比仅为3.8%，而大于80岁的占比为1.4%。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">从美国华盛顿州发布的10月12日发布的报告来看，18岁至34岁也是二次感染的主要人群，占比为37.8%，而65岁以上人群仅占7.4%。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">需要解释的是，年轻群体更易二次感染，不是生理原因，而是与其社会活动情况有关。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">美国俄亥俄州护理研究中心（CVCR）的学者解释，相较于老年人，年轻群体的社会活动更频繁，更容易暴露在有病毒的环境中，因此二次感染的机率更大。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;text-align: center;"><span style="color: rgb(0, 122, 170);"><strong><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">疫苗能有效降低二次感染概率</span></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">塞尔维亚伏伊伏丁那公共卫生研究所 (IPHV) 学者表示，相较于年轻群体，老年群体之所以二次感染率较低，是因为他们通常优先接种疫苗，包括第三针加强针，由于疫苗接种率较高，二次感染的机率便下降。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据意大利萨科等学者的研究，在意大利，未接种疫苗者的二次感染风险是已接种者的2.9倍。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">并且，随着接种针数的增多，二次感染的风险逐渐下降。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据5月发表在MedRxiv上的研究论文，相较于未接种疫苗且未感染的患者而言，此前感染过非奥密克戎毒株的患者，体内抗体的有效性为44%；而随着疫苗接种计数的增加，体内抗体的有效性也不断增多，对于已接种三针疫苗且有感染经历的患者而言，抗体的有效性达到83%。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">并且，接种疫苗也可有效降低二次感染的住院风险。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">同上述论文，相较于未接种疫苗且未感染的患者而言，接种3剂疫苗后，体内抗体对于防重症的有效性达到91%。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">但同时，需要注意的是，与感染后体内抗体一致，疫苗预防二次感染的有效性将随着时间的推移而减弱。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据意大利学者的研究，当疫苗接种超过120天（即4个月后），已接种者与未接种者间二次感染的风险缩小至1.53倍。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据印度医学科学研究所今年8月发表的论文，完全接种两剂疫苗后，其有效性在14至60天内最高，为52.5%。而在疫苗接种4个月至6个月后，有效性仅剩29.4%。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;text-align: center;"><span style="color: rgb(0, 122, 170);"><strong><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">二次感染重症率下降</span></strong></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">相较于首次感染，二次感染所导致的疾病严重程度有所下降，包括住院率、ICU重症率、病死率等。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据康奈尔大学流行病学组今年3月发表的研究，严重的二次感染是很罕见的，只有0.1%的病例出现了严重症状，且没有一例出现危急症状。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据雅典大学医学院今年9月发表的研究，相较于首次感染，二次感染以轻症状为主，特别是在奥密克戎感染者，轻症状的占比达到99.17%，较为严重与紧急情况的占比则为0.78%、0.05%，都低于首次感染。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">并且，二次感染出现合并症的机率也有所减少。</span><span style="font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);">合并症是指与原发疾病同时病发的一种或多种疾病，包含生理与心理上的情况。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">同样根据上述雅典大学医学院学者的研究，相较于首次感染，二次感染患者中无合并症的占比提高，出现多个合并症的占比也有所减少。</span></p><p style="outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 2em; margin-bottom: 0px; margin-top: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: center;"></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">此外，英国伦敦大学学院健康信息学研究所表示，即使是老年群体，二次感染所带来的住院风险都有所下降。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">根据其今年5月发表的论文，在英国2264名长期护理中心居民中，再次感染患者的入院风险低于首次感染的患者，仅为首次感染入院的21%。</span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></span></p><p style="outline: 0px;max-width: 100%;color: rgb(34, 34, 34);font-family: system-ui, -apple-system, system-ui, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);line-height: 2em;margin-bottom: 0px;margin-top: 0px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;letter-spacing: 0.544px;text-align: start;caret-color: rgb(34, 34, 34);box-sizing: border-box !important;overflow-wrap: break-word !important;">因此，对于二次感染，大家不用过度担心，落实好防护措施，包括戴口罩、注意手卫生、保持社交距离等，并积极接种新冠病毒疫苗，以降低感染风险。</span></p><p style="margin-top: 0.5em;margin-bottom: 0.5em;outline: 0px;max-width: 100%;color: rgb(34, 34, 34);letter-spacing: 0.544px;white-space: normal;font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;background-color: rgb(255, 255, 255);caret-color: rgb(34, 34, 34);line-height: normal;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="outline: 0px;max-width: 100%;font-size: 14px;letter-spacing: 1px;color: rgb(136, 136, 136);box-sizing: border-box !important;overflow-wrap: break-word !important;">内容来源：北京日报客户端、微信公众号“上观新闻”</span></p><link 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三生三世 发表于 2022-12-17 18:22

非常感谢分享

大丰人民 发表于 2022-12-17 20:52

没事。。。。

我的秋天 发表于 2022-12-17 22:21

要是如此反复那可怎么办

《心静》 发表于 2022-12-18 07:27

如果反复感染怎么办？还能有加强疫苗吗？

张红艳遇 发表于 2022-12-18 07:47

感谢分享，，，，，，

一只眠羊~ 发表于 2022-12-18 15:12

感谢分享

我佛慈悲 发表于 2022-12-18 16:13

佑我中华！

红旗渠 发表于 2022-12-19 07:09

感谢分享。

麻辣鱿鱼须 发表于 2022-12-19 11:11

希望我们都注重锻炼身体，提高自身免疫力

可爱草莓酱 发表于 2022-12-19 13:48

感谢分享

不要麻辣只要烫 发表于 2022-12-19 17:39

感谢分享

查看完整版本: 二次感染比例究竟有多高？