Factors associated with asymptomatic infection in health-care workers with severe acute respiratory syndrome coronavirus 2 infection in Wuhan, China: a multicentre retrospective cohort study

Zhang S, Guo M, Wu F, Xiong N, Ma Y, Wang Z, Duan L, Chen L, Ouyang H, Jin Y. Factors associated with asymptomatic infection in health-care workers with severe acute respiratory syndrome coronavirus 2 infection in Wuhan, China: a multicentre retrospective cohort study. Clin Microbiol Infect. 2020; 26(12): 1670-1675.