The mystery of the origins of the COVID-19 pandemic now has some new clues.
FILE - Raccoon dogs are seen at a cage in Tokyo's Ueno zoo Saturday, May 24, 2003. International scientists who examined previously unavailable genetic data from samples collected at a market close to where the first human cases of COVID-19 were detected in China said they found suggestions the pandemic originated from animals, not a lab. Other experts have not yet verified their analysis, which also has not appeared so far in a peer-reviewed journal.
How the coronavirus emerged remains unclear. Many scientists believe it most likely jumped from animals to people, as many other viruses have in the past, at a wildlife market in Wuhan, China. But Wuhan is home to several labs involved in collecting and studying coronaviruses, fueling theories scientists say are plausible that the virus may have leaked from one.
The samples were collected from surfaces at the Huanan seafood market in early 2020 in Wuhan, where the first human cases of COVID-19 were found in late 2019. The data show that some of the COVID-positive samples collected from a stall known to be involved in the wildlife trade also contained raccoon dog genes, indicating the animals may have been infected by the virus, according to the scientists. Their analysis was first reported in The Atlantic.
Ray Yip, an epidemiologist and founding member of the U.S. Centers for Disease Control office in China, said the findings are significant, even though they aren't definitive.
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