What The Study Did: Researchers investigated the association between the timing of exposure and development of disease among close contacts of index patients with COVID-19 and evaluated whether the severity of the index case is associated with clinical presentation in close contacts who develop COVID-19.
Authors: Feng Ling, M.D., of the Zhejiang Provincial Center for Disease Control and Prevention in Hangzhou, Zhejiang, China, and Ye Shen, Ph.D., of the University of Georgia in Athens, is the corresponding author.
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(doi:10.1001/jamainternmed.2021.4686)
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