Coronavirus outbreak may have started as early as September 2019

‘Based on the data Forster and his colleagues have collected, the coronavirus outbreak appears to have started between September 13 and December 7. “This assumes a constant mutation rate, which is admittedly unlikely to be the case, and the time estimate could therefore be wrong,” he told Newsweek. “But it is the best assumption we can make at the moment, pending analysis of further patient samples stored in hospitals during 2019”.’

Read here (Newsweek, April 17, 2020)

Related

• Cambridge researchers identify 3 variants of Covid-19, say their methods could be used to help identify undocumented infection sources. Read here
• First case of Covid-19, presumably Type A, occurred ‘no earlier than September 13, 2019 and no later than December 7, 2019’. View here