Cities, counties and districts with no newly confirmed cases in the last 14 days are categorized as low-risk regions, those with fewer than 50 cases or those with over 50 but without a concentrated outbreak are classified as medium-risk regions, and those with over 50 cases as well as a concentrated outbreak are classified as high-risk regions.
即以县市区为单位,无确诊病例或连续14天无新增确诊病例为低风险地区;14天内有新增确诊病例,累计确诊病例不超过50例,或累计确诊病例超过50例,14天内未发生聚集性疫情为中风险地区;累计病例超过50例,14天内有聚集性疫情发生为高风险地区。
照此标准,4月14日,北京朝阳区确诊的一例境外输入性病例 Up to 62 of his close contacts were put under medical isolation and observation.
该病例的62名密切接触者已进行医学隔离和观察。
针对这起疫情,北京已迅速隔离治疗病例,严密开展流行病学调查 【相关词汇】
传染病检疫及监测
quarantining and monitoring of infectious diseases
病毒携带者
virus carrier
传染途径
route of transmission
输入病例
imported case
流行病学调查
epidemiological investigation
集中观察
concentrated observation
外防输入、内防反弹
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