Place of contact and number of individuals who came into contact with four confirmed COVID-19 patients.
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资源简介：
Place of contact and number of individuals who came into contact with four confirmed COVID-19 patients.
4例新型冠状病毒肺炎（COVID-19）确诊病例的接触场所及接触人员数量
创建时间：
2020-08-14
