BackgroundOn December 29, 2019, the health authorities in Hubei Province and Wuhan City received a report of a cluster of pneumonia cases of unknown etiology from a local hospital, and all four patients were employees of the Wuhan Huanan Seafood Wholesale Market (HN market for short) (1). By January 8, 2020, Chinese authorities had identified a new virus 2019 novel coronavirus (2019-nCoV) linked with the outbreak of disease, which has been named novel coronavirusinfected pneumonia (NCIP) (2). On 15 January, the National Health Commission (NHC) issued guidelines for the diagnosis, treatment, prevention, and control of NCIP. These guidelines directed case monitoring, reporting, diagnosis, treatment, management, close contact management, and laboratory testing. On
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.