每日一词∣无症状感染者 asymptomatic coronavirus carriers
<p>我国已加强对新冠病毒无症状感染者的检测、报告及管理，要求全国各地的医疗机构在2小时内报告新增无症状感染者病例，24小时内完成无症状感染者的个案流行病学调查。</p><p><span word="China">China</span> <span word="has">has</span> <span word="strengthened">strengthened</span> <span word="the">the</span> <span word="detection">detection</span>, <span word="reporting">reporting</span> <span word="and">and</span> <span word="management">management</span> <span word="of">of</span> <span word="asymptomatic">asymptomatic</span> <span word="coronavirus">coronavirus</span> <span word="carriers">carriers</span>. <span word="Medical">Medical</span> <span word="institutions">institutions</span> <span word="across">across</span> <span word="the">the</span> <span word="country">country</span> <span word="are">are</span> <span word="ordered">ordered</span> <span word="to">to</span> <span word="report">report</span> <span word="the">the</span> <span word="infection">infection</span> <span word="within">within</span> <span word="two">two</span> <span word="hours">hours</span> <span word="of">of</span> <span word="an">an</span> <span word="asymptomatic">asymptomatic</span> <span word="case">case</span> <span word="being">being</span> <span word="found">found</span>, <span word="and">and</span> <span word="a">a</span> <span word="case">case</span> <span word="epidemiological">epidemiological</span> <span word="investigation">investigation</span> <span word="should">should</span> <span word="be">be</span> <span word="completed">completed</span> <span word="within">within</span> 24 <span word="hours">hours</span>.</p><p> 2020年3月22日，天津海关工作人员在对旅客进行流行病学调查。新冠病毒无症状感染者是指无发烧、咳嗽、咽痛等自我感知的临床症状，同时也没有临床可识别的症状和体征，但是呼吸道等标本新冠病毒病原学检测是阳性者。无症状感染者由于其特殊的隐匿性、症状的主观性，发现相对比较难。目前中国主要采取五种方式来发现无症状感染者：一是对确诊病例、疑似病例的密切接触者进行主动检测发现。二是在聚集性疫情调查过程中，开展了存在感染风险人群的主动监测。三是在传染源追踪过程中，对暴露人群进行主动监测。四是在入境人员公共口岸，对发现来自高风险国家、疫情高发的地方，或者在这一航班里有感染或有症状的情况，对这些人群进行主动监测。五是通过流行病学调查和结果性筛查途径进行主动监测。目前为止，中国累计报告无症状感染者的总数是6764例。其中1297例在管理过程中出现症状转为确诊病例，4444例解除医学观察；1023例仍处于医学观察中。</p>
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