First Wuhan COVID-19 case days later than initially reported

First Wuhan COVID-19 case days later than initially reported

The first case of Covid-19 identified in Wuhan, China and presented as such by the World Health Organization (WHO) was actually days later than previously believed and at an animal market, a top scientist said in the journal Science on Thursday (Nov 18).

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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 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.

With no definitive evidence, debate has raged among experts since the start of the pandemic almost two years ago over the origin of the virus.

Worobey was one of the 15 or so experts who in mid-May published a column in Science demanding serious consideration of the thesis that the virus had leaked from a laboratory in Wuhan.

In this latest article, he argued that his research into the origin of the outbreak "provides strong evidence of a live-animal market origin of the pandemic."

One criticism of the market theory was that because health authorities raised the alert about cases of a suspicious disease linked to the market as early as Dec 30, 2019, that would have introduced a bias that led to the identification of more cases there than elsewhere, since attention had already been drawn to it.

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