1st confirmed cases of unusual pneumonia in Whuan (China)
The genome of the SARS-CoV-2 virus sequenced and deposited in the international virological.org. database by Chinese researchers
WHO declared the coronavirus outbreak an international public health emergency
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.