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Secondary Transmission of Coronavirus Disease from Presymptomatic Persons, China #MMPMID32453686
Zhang W; Cheng W; Luo L; Ma Y; Xu C; Qin P; Zhang Z
Emerg Infect Dis 2020[Aug]; 26 (8): 1924-1926 PMID32453686show ga
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.