‹ Knowledge base
Browse the corpus
Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.
1 passage
abstractpubmed· Abstract 2020· item PMID:32091386
Potential Presymptomatic Transmission of SARS-CoV-2, Zhejiang Province, China, 2020. We report a 2-family cluster of persons infected with severe acute respiratory syndrome coronavirus 2 in the city of Zhoushan, Zhejiang Province, China, during January 2020. The infections resulted from contact with an infected but potentially presymptomatic traveler from the city of Wuhan in Hubei Province.