Two new studies provide more evidence that the coronavirus pandemic originated in a Wuhan, China market where live animals were sold
– further bolstering the theory that the virus emerged in the wild rather than escaping from a Chinese lab.
The research, published online Tuesday by the journal Science, shows that the Huanan Seafood Wholesale Market was likely the early epicenter of the scourge that has now killed nearly 6.4 million people around the world. Scientists conclude that the virus that causes COVID-19, SARS-CoV-2, likely spilled from animals into people two separate times.
“All this evidence tells us the same thing: It points right to this particular market in the middle of Wuhan,” said Kristian Andersen a professor in the Department of Immunology and Microbiology at Scripps Research and coauthor of one of the studies. “I was quite convinced of the lab leak myself until we dove into this very carefully and looked at it much closer.
They asked, “Of all the locations that the early cases could have lived, where did they live? And it turned out when we were able to look at this, there was this extraordinary pattern where the highest density of cases was both extremely near to and very centered on this market,” Worobey said at a press briefing.
“Now I realize it sounds like I just said that a once-in-a-generation event happened twice in short succession,” Wertheim said. But certain conditions were in place — such as people and animals in close proximity and a virus that can spread from animals to people and from person to person. So “barriers to spillover have been lowered such that multiple introductions, we believe, should actually be expected,” he said.
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