47,000 wild animals sold at Wuhan market before COVID-19 outbreak

A new study has found that thousands of wild animals were sold in markets in the Chinese city of Wuhan, before the outbreak of the COVID-19 disease.

Some of the first COVID-19 infections were linked to the Huanan Seafood Market in Wuhan, China. Photo: Simon Song. According to the South China Morning Post (Hong Kong, China), a study by scientists from West China Normal University and Oxford University recently shed light on the wildlife trade. in Wuhan City, which has long been considered a potential source of the spread of COVID-19. In the most detailed record of the wildlife trade yet to be released, scientists estimate that more than 47,000 wild animals were sold in the city’s markets in the two-and-a-half years before the outbreak. disease outbreak. According to the study, up to 38 animals were sold at 17 stores in four markets in Wuhan city between May 2017 and November 2019. These include mammals such as civets, ferrets and raccoons, which are known to be susceptible to the SARS-CoV-2 virus, along with squirrels, badgers, foxes and porcupines, as well as birds and cows close. However, the researchers did not find any evidence that bats or pangolins – considered two sources of SARS-CoV-2 virus transmission – were commercially available. Seven of the wildlife shops are at the Huanan seafood wholesale market, which has been linked to several COVID-19 cases in late 2019. On average, about 1,100 animals are transported throughout the city’s markets each month, in a trade that the researchers describe as qualifying for disease spread and “essentially any legal”. “Almost all the animals for sale are alive, caged, crammed and in poor condition. Most of the shops offer butchering services, which are performed on site, which does not guarantee food hygiene or animal welfare,” the researchers said. Huanan Seafood Market, Wuhan, closed last January. Photo: Simon Song/SCMP Veterinarian David Hayman, a member of the World Health Organization (WHO) team visiting Wuhan in early 2021, said the study confirmed that live wild mammals were for sale. in Wuhan, which the WHO team suspected, but could not verify. The study also provides clear evidence that several species that are susceptible to the SARS-CoV-2 virus have been “continuously marketed,” Hayman said. The origin of the SARS-CoV-2 virus that causes the COVID-19 epidemic is still unknown. Scientists as well as governments in many countries have called for further investigation into whether the virus came from the wild or leaked from a laboratory, a theory that China has repeatedly denied. The wildlife trade has been identified as a possible route of transmission of the virus, which is believed to have originated in bats. Most of the first cases were linked to the Huanan Seafood Market, and a subsequent analysis found that more than half of the first cases in December 2019 were in contact with this market or markets. other in the city. However, no link was found between commercially available animals and the virus. Earlier, a report by the WHO team, based on information from Chinese authorities, said that only snakes, crocodiles and salamanders, which are less likely to contract SARS-CoV-2, were sold directly. continue at the market at the end of December 2019. “It is important that mammals that are alive and being sold in markets in Wuhan just before the first cases of COVID-19 were recorded, are very contagious with the SARS-CoV-2 virus,” said Daniel Lucey. , an infectious disease specialist at Georgetown University Medical Center (USA), said. Meanwhile, Zhou Zhao-min, co-author of the study, hopes the newly published data can be useful in tracing the origin of the SARS-CoV-2 virus.