*11 March 2020 – WHO declares the outbreak can be characterized as a pandemic.<ref>https://www.nbcnews.com/health/health-news/coronavirus-timeline-tracking-critical-moments-covid-19-n1154341/</ref>
*11 March 2020 – WHO declares the outbreak can be characterized as a pandemic.<ref>https://www.nbcnews.com/health/health-news/coronavirus-timeline-tracking-critical-moments-covid-19-n1154341/</ref>
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*12 March - Berman Law Group files [[class action]] lawsuit against People;s Republic of China; National Health Commission of the People's Republic of China; Ministry of Emergency Management of the People's Republic of China; Ministry of Civil Affairs of the People's Republic of China; The People's Government of Hubei Province; and the People's Government of the City of Wuhan. China.<ref>https://www.scribd.com/document/453175700/Berman-Complaint-Against-China#from_embed</ref>
*13 March – State of Emergency declared in the United States.<ref>https://www.nbcnews.com/health/health-news/coronavirus-timeline-tracking-critical-moments-covid-19-n1154341 /</ref>
*13 March – State of Emergency declared in the United States.<ref>https://www.nbcnews.com/health/health-news/coronavirus-timeline-tracking-critical-moments-covid-19-n1154341 /</ref>
*16 March – United States begins human testing of COVID-19 vaccine.<ref>https://www.nbcnews.com/health/health-news/coronavirus-timeline-tracking-critical-moments-covid-19-n1154341 /</ref>
*16 March – United States begins human testing of COVID-19 vaccine.<ref>https://www.nbcnews.com/health/health-news/coronavirus-timeline-tracking-critical-moments-covid-19-n1154341 /</ref>