中疾控：奥密克戎病死率远高于流感，加强针至关重要
<p style="box-sizing: border-box; -webkit-tap-highlight-color: transparent; margin-top: 1em; margin-bottom: 1em; padding: 0px; word-break: break-word; text-align: center; text-indent: 2em; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 18px; line-height: 2; font-family: Microsoft Yahei, PingFang SC, Lantinghei SC, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans; white-space: normal; background-color: rgb(255, 255, 255);"></p><p style="line-height: 2em;">4月6日下午，国务院联防联控机制召开新闻发布会。</p><p><br/></p><p style="line-height: 2em;">有记者提问，从目前报告情况来看，本土新增感染者大多数为无症状感染者和轻症患者，有人说奥密克戎危害小，是这样吗？</p><p><br/></p><p style="line-height: 2em;">“奥密克戎毒力下降相对既往毒株而言，从目前数据来看，它的危害性远远高于所谓的流感。”北京大学第一医院感染疾病科主任王贵强表示，吉林这次疫情，重症病人甚至死亡的病例，都是没有接种疫苗的，或者接种疫苗的比例非常低，这也是奥密克戎危害性很重要的体现。香港这次的疫情，香港特区数据显示目前有110多万感染者，死亡8000多例，总的病死率是0.7%，病死率0.7%远高于流感的病死率。</p><p><br/></p><p style="line-height: 2em;">王贵强分析，目前我们国家流行的奥密克戎毒株从整体来看，无症状感染者和轻型病例确实比较高。第一，因为奥密克戎毒株毒力有所下降，上呼吸道感染为主，下呼吸道感染比较少，肺炎发生率比较低。第二，因为目前疫苗接种的本底之下，我们国家大量接种疫苗，所以刚刚提到疫苗接种重症比例明显低。第三，主动核酸筛查，很多病人在潜伏期发现，所以无症状感染者比例相对高。第四，当然，青壮年感染奥密克戎毒株无症状和轻型病例也比较高。</p><p><br/></p><p style="line-height: 2em;">王贵强表示，香港的疫情数据给我们一个非常重要的提示，<strong>疫苗接种与否和患者的病死率关系非常密切。</strong>从香港病死人群数据来看，没有接种疫苗的病死率是3.2%，接种一针疫苗的病死率0.96%，接种两针0.14%，接种三针0.03%，可以看到三针疫苗接种可以有效降低奥密克戎感染以后的病死率。目前我们还不能麻痹大意，一方面要采取积极有效的防控策略，另一方面一定要积极推动疫苗的接种。在这里，我要呼吁广大的老年朋友积极接种疫苗，尤其是加强免疫，第三针至关重要。只有把这些老年人有基础病的高风险人群保护好，把疫苗打下去，才可以真正降低奥密克戎的危害性。</p><p><br/></p><section style="margin: 0px; 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