Lancet:美国首例本地传播新冠肺炎患者研究

2020-04-04 MedSci原创 MedSci原创

SARS-CoV-2在无保护环境中发生人际传播的风险极高,但密切接触者进行进行了积极的症状监测和病毒测试,是阻断COVID-19大规模流行的必要手段

2019年冠状病毒病(COVID-19)是由严重急性呼吸综合征冠状病毒2(SARS-CoV-2)引起的传染病,于2019年12月在中国首次发现。2020年1月,美国州、地方和联邦公共卫生机构首次在美国伊利诺伊州发现了COVID-19病例。
 
确诊的COVID-19患者被定义为SARS-CoV-2检测阳性的患者。接触者是在患者症状出现之日或之后接触COVID-19患者的人。接触者在最后一次接触后14天的积极症状监测。出现发烧、咳嗽或呼吸急促的接触者列为调查对象,并接受了SARS-CoV-2检测。对32名无症状的医护人员也进行了测试。
 
首例确诊患者(患者1)是一名60多岁的女性,于2020年1月中旬从中国返回。一周后,她因肺炎住院,SARS-CoV-2检测呈阳性。她的丈夫(患者2)没有中国旅行史,但与妻子有密切接触,在8天后入院,SARS-CoV-2检测呈阳性。共发现372例接触者,347例进行了积极的症状监测,其中社区接触者152例,医护人员195例。在被监测的接触者中,除2号患者外,还有43人成为调查对象。上述43名接受调查的人员和所有32名无症状医护人员的SARS-CoV-2检测均为阴性。
 
SARS-CoV-2在无保护环境中发生人际传播的风险极高,但密切接触者进行进行了积极的症状监测和病毒测试,是阻断COVID-19大规模流行的必要手段。
 
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    2020-08-27 14818eb4m67暂无昵称

    xxl

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    2020-05-20 howi
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    2020-04-04 公卫新人

    新冠肺炎,疫情何时才能消失

    0

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