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1st confirmed cases of unusual pneumonia in Whuan (China)
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The genome of the SARS-CoV-2 virus sequenced and deposited in the international virological.org. database by Chinese researchers
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WHO declared the coronavirus outbreak an international public health emergency
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The Department of Health and Human Services (HHS) declared the existence of circumstances justifying the emergency use authorisation (EUA) of in vitro tests for the detection and/or diagnosis of COVID-19.