Abstract
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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CITATION STYLE
APA
Zhang, W., Cheng, W., Luo, L., Ma, Y., Xu, C., Qin, P., & Zhang, Z. (2020). Secondary transmission of coronavirus disease from presymptomatic persons, China. Emerging Infectious Diseases, 26(8), 1924–1926. https://doi.org/10.3201/eid2608.201142
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