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 Position: Home > Commentary  
What Is Required to Prevent a Second Major Outbreak of SARS-CoV-2 upon Lifting Quarantine in Wuhan City, China
Editor£ºInnovation   Time£º2020/5/21


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Impact of Various Combinations of Facial Mask Usage and Public Person-to-Person Contact Rates on COVID-19


The outbreak of the novel coronavirus SARS-CoV-2 was first identified in the Chinese city of Wuhan in early December 2019, when a group of 27 patients with close contact with a seafood market were diagnosed with a pneumonia of unknown cause.1 The virus was found to be highly contagious and transmit in populations via droplet, person-to-person contact, and aerosol transmission.2 The number of infected cases increased rapidly in Wuhan during the first few weeks of the outbreak, and then quickly spread to all 31 Chinese provinces and abroad.3 By March 20, 2020, 180 countries worldwide had reported cases of COVID-19. So far, China has reported 80,695 confirmed cases and 3,097 deaths, accounting for about one-third of all cases and deaths worldwide.


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