期刊
EMERGING INFECTIOUS DISEASES
卷 26, 期 8, 页码 1924-1926出版社
CENTERS DISEASE CONTROL & PREVENTION
DOI: 10.3201/eid2608.201142
关键词
-
资金
- Project for Key Medicine Discipline Construction of Guangzhou Municipality [2017-2019-07]
We explored the secondary attack rate in different types of contact with persons presymptomatic for coronavirus disease (COVID-19). Close contacts who lived with or had frequent contact with an index case-patient had a higher risk for COVID-19. Our findings provide population-based evidence for transmission from persons with presymptomatic COVID-19 infections.
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