The first known Covid-19 case was of a market vendor in the Chinese city of Wuhan, not an accountant who had no affiliation with the market, but whose case contributed to speculation that the virus may have leaked from a laboratory, an American According to the study.
The origin of the SARS-CoV-2 virus that causes COVID-19 remains a mystery and is a major source of tension between China and the United States.
A joint study this year by China and the World Health Organization (WHO) debunked the theory that Covid-19 originated in a laboratory, saying it was most likely transmitted naturally to humans. does, perhaps through the wildlife trade.
A team of WHO-led experts spent four weeks in and around the central city of Wuhan with Chinese scientists and said in a joint report in March that the SARS-CoV-2 virus was possibly transmitted from bats to humans via another animal. was done, but it needed further research.
The accountant, widely believed to be the first person with COVID-19, reported that his first symptoms appeared on December 16, several days after they were initially known, said Michael Vorobey, a professor of ecology and evolutionary biology at the University of Arizona. was chief of. said in the study Published Thursday in the journal Science.
This confusion was caused by a dental problem that occurred on 8 December.
“Her symptomatology followed several cases among workers at Huanan Market, with the onset of the disease on December 11, with the earliest known case being a female seafood vendor,” the study said.
It said most of the early symptomatic cases were market-linked, particularly from the western segment where raccoon dogs were caged, and provided strong evidence of the epidemic’s live-animal market origins.
WHO proposed a new expert last month Panel To investigate the source of the coronavirus.
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