April 28, 2024

Scientists Trace Earliest Cases of COVID-19 to Huanan Seafood Wholesale Market in Wuhan, China

Bat meat for sale at a market.
A global group of scientists has actually figured out that the earliest cases of COVID-19 in people occurred at a wholesale fish market in Wuhan China in December 2019. They connected these cases to bats, foxes, and other live mammals contaminated with the virus offered in the market either for intake as meat or for their fur. The group of 18 researchers included a researcher at the University of Utah Health.
The finding validates early reports, later on dismissed by senior Chinese officials, that live animals cost the Huanan Seafood Wholesale Market were the most likely source of the pandemic that has claimed a minimum of 6.4 million lives since it initially emerged in China nearly three years back. The study was published in the July 26, 2022, concern of Science.
” These are the most engaging and most comprehensive studies of what occurred in Wuhan in the earliest stages of what would become the COVID-19 pandemic,” states Stephen Goldstein, Ph.D., a co-author of the study led by senior author Kristian Anderson, Ph.D., from the Scripps Research Institute in La Jolla and first author Michael Worobey, Ph.D., from the University of Arizona. Goldstein is a post-doctoral scientist in the department of Human Genetics at University of Utah Health. “We have actually convincingly shown that the wild animal sales at the Huanan Market in Wuhan are implicated in the very first human cases of the illness.”

Amongst the research studys essential findings:

The emergence of SARS-CoV-2, the infection that causes COVID-19, can likely be traced to several of the 10 to 15 stalls in the market that offered live dogs, rats, badgers, porcupines, foxes, hares, marmots, hedgehogs, and Chinese Muntjac (a little deer). Health officials and researchers detected the SARS-CoV-2 coronavirus on animal cages, carts, and drain grates in these venues.
Neighborhoods within a half-mile of the marketplace were the only areas where the virus was spreading out in December 2019. Some scientists had previously suggested that the virus was brought into the marketplace from somewhere else in the city and spread amongst its clients. Rather, the brand-new findings highly suggest that the virus came from the market through live animal sales, and slowly spread from there into close-by areas and after that the city at large.
2 versions of the SARS-CoV-2 virus were spotted at the market. That recommends both versions originated separately at the market and helps verify the scientists hypothesis that the early spread of the infection began there. If the infection came from in other places, its more likely that only a single variation would have been discovered.

Moving forward, the researchers provide recommendations to public authorities to reduce the danger of future pandemics. Namely, they need to seek a much better understanding of the wildlife sell China and elsewhere and promote more thorough screening of live animals sold in markets.
Recommendation: “The Huanan Seafood Wholesale Market in Wuhan was the early epicenter of the COVID-19 pandemic” by Michael Worobey, Joshua I. Levy, Lorena Malpica Serrano, Alexander Crits-Christoph, Jonathan E. Pekar, Stephen A. Goldstein, Angela L. Rasmussen, Moritz U. G. Kraemer, Chris Newman, Marion P. G. Koopmans, Marc A. Suchard, Joel O. Wertheim, Philippe Lemey, David L. Robertson, Robert F. Garry, Edward C. Holmes, Andrew Rambaut and Kristian G. Andersen, 26 July 2022, Science.DOI: 10.1126/ science.abp8715.

They linked these cases to bats, foxes, and other live mammals infected with the virus sold in the market either for usage as meat or for their fur. Neighborhoods within a half-mile of the market were the only areas where the virus was spreading out in December 2019. Some researchers had previously suggested that the virus was brought into the market from in other places in the city and spread among its clients. Rather, the brand-new findings highly recommend that the infection came from in the market through live animal sales, and gradually spread out from there into nearby communities and then the city at big.