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- 2022-01-18T06:16:56Z by 熊涛
于永强
ea6b80c0-b761-1036-8b71-ef16cba5f6da
yyongqiang@kinlong.cn
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2021-01-20T07:24:56Z
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近期北方疫情严重,广播中播放了这么一条信息,河北第57号病例到武汉,密切接触者及次密切接触者1800多人,但是这些人核酸检测均为阴性,调查及监控发现,他与这些人接触的时候均佩戴了口罩并保持了社交距离!
呼吸道疾病感染几率:1)双方均未佩戴口罩,感染几率90%;
2)自己佩戴口罩,对方未戴,感染几率30%;
3)自己未佩戴口罩,对方佩戴口罩,感染几率5%;
4)双方都佩戴口罩,但未保持社交距离,感染几率1.5%;
5)双方都佩戴口罩,并保持社交距离,感染几率几乎为0
所以,佩戴口罩很重要!保持社交距离很重要!
Updated on 2021-01-20T07:25:43Z at 2021-01-20T07:25:43Z by 于永强
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