The first case of Covid-19 identified in Wuhan, China and presented as such by the World Health Organisation was actually days later than previously believed and at an animal market, a top scientist said in the journal Science Thursday.
Rather than the original patient being a man who had never been to the Wuhan market where wild and domestic animals were sold, the first known case of Covid-19 turns out to have been a woman who had worked in the market, virologist Michael Worobey wrote.
For Dr Worobey, that key piece of information, and his analysis of other early cases of Covid-19 in the city, clearly tip the scales towards the virus having originated in an animal.