London, Europe Brief News – Wuhan’s Huanan seafood and wildlife market was at the centre of the Covid-19 outbreak, scientists revealed.
Two peer-reviewed studies published on Tuesday re-examine information from the initial outbreak in the Chinese city.
Two years of scientific effort to understand the virus that causes Covid-19 have provided these researchers with a more informed perspective.
One of the studies shows that the earliest known cases were clustered around that market.
The other uses genetic information to track the timing of the outbreak.
It suggests there were two variants introduced into humans in November or early December 2019.
Together, the researchers say this evidence paints a picture that Sars-Cov-2 was present in live mammals that were sold at Huanan market in late 2019. They say it was transmitted into people who were working or shopping there in two separate “spillover events”, where a human contracted the virus from an animal.
One of the researchers involved, virologist Prof David Robertson from the University of Glasgow, told BBC News that he hoped the studies would “correct the false record that the virus came from a lab”.