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Genetic Evidence Ties Covid's Origin to Raccoon Dogs | Smart News| Smithsonian Magazine

  
Via:  al Jizzerror  •  last year  •  7 comments

By:   Will Sullivan (Smithsonian Magazine)

Genetic Evidence Ties Covid's Origin to Raccoon Dogs | Smart News| Smithsonian Magazine
New data support the theory that the virus causing Covid-19 first spread to humans from animals

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I guess Raccoon Dogs are NOT "man's best friend."

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Raccoon Dogs are cute!


S E E D E D   C O N T E N T



New data support the theory that the virus causing Covid-19 first spread to humans from animals

Will Sullivan

March 20, 2023 5:24 p.m. An analysis of genetic samples taken in 2020 from a market in Wuhan, China, found both the coronavirus and raccoon dog DNA. Arterra / Universal Images Group via Getty Images

A group of scientists say they have new evidence supporting the theory that the Covid-19 pandemic began with a spillover from animals to humans, as opposed to a leak from a lab, the Atlantic's Katherine J. Wu first reported last week.

Samples taken in early 2020 from the Huanan Seafood Wholesale Market in Wuhan, China, contained both the SARS-CoV-2 virus and genetic material from raccoon dogs, according to a new analysis.

While the research adds new evidence to the mystery of the pandemic's origin, it is not a smoking gun, experts say. Such a finding "places the virus and the dog in very close proximity," Michael Imperiale, a microbiologist and immunologist at the University of Michigan who did not contribute to the work, tells Dake Kang and Maria Cheng of the Associated Press (AP). "But it doesn't necessarily say that the dog was infected with the virus; it just says that they were in the same very small area."

"We can't definitively prove that there were infected raccoon dogs who were the first source of the virus going into humans," Stephen Goldstein, a virologist at the University of Utah who worked on the analysis, tells the Washington Post'sJoel Achenbach and Mark Johnson. "But it is highly suggestive of that."

The researchers presented their results to a World Health Organization (WHO) scientific advisory group last Tuesday—the findings have not gone through a peer review process, nor have they been published in a scientific journal.

But the new analysis "really strengthens the case for a natural origin," Seema Lakdawala, a virologist at Emory University who did not contribute to the analysis, tells the Atlantic.

Researchers from the Chinese Center for Disease Control and Prevention quietly uploaded data from the genetic samples taken at the Wuhan market, the site of the first documented Covid-19 outbreak, to an open-access database a few weeks ago, per the Atlantic. The data was recently taken down, but international scientists had already downloaded the data and begun to analyze it.

The samples were collected in animal stalls in early 2020, after the market had been closed, per the Washington Post. Because the samples had raccoon dog genes, scientists think the creatures may have been infected. "There's a good chance that the animals that deposited that DNA also deposited the virus," Goldstein tells the AP. "If you were to go and do environmental sampling in the aftermath of a zoonotic spillover event … this is basically exactly what you would expect to find."

Angela Rasmussen, a virologist at the University of Saskatchewan in Canada who participated in the research, tells the Atlantic, "there's really no other explanation that makes any sense."

Still, exactly what caused the Covid-19 pandemic remains uncertain. The FBI has expressed a belief that a lab leak is to blame, and last month, the Department of Energy issued a report that reached the same conclusion, albeit with "low confidence," per ABC News' Mary Kekatos. Several labs that collect and study coronaviruses are located in Wuhan. Meanwhile, four U.S. agencies and the National Intelligence Council say the virus likely passed from animals to humans.

Given the possibility of both of these explanations, the new data are "very inconclusive," David A. Relman, a microbiologist and immunologist at Stanford University who did not contribute to the research, tells the Washington Post in an email. "Frankly, the breathlessness and alacrity with which stories like this one are promoted, in the face of very incomplete and confusing 'data,' leaves me frustrated and concerned."

Several researchers have expressed concerns that information surrounding the pandemic's origin, such as the recently analyzed genetic data, was not released to the public sooner—or at all. The WHO is asking officials in China to release such data.

"The big issue right now is that this data exists and that it is not readily available," says WHO epidemiologist Maria Van Kerkhove, according to NPR's Michaeleen Doucleff and Jason Beaubien. "Any data that exists on the study of the origins of this pandemic need to be made available immediately."

Will Sullivan||READ MORE

Will Sullivan is a science writer based in Washington, D.C. His work has appeared in Inside Science and NOVA Next.

AnimalsChinaCOVID-19DiseaseDisease and IllnessesHealthNew ResearchPandemicVirusesRecommended Videos


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al Jizzerror
Masters Expert
1  seeder  al Jizzerror    last year

Raccoon Dogs were NOT created in a Chinese laboratory.

 
 
 
Greg Jones
Professor Participates
1.1  Greg Jones  replied to  al Jizzerror @1    last year

"Given the possibility of both of these explanations, the new data are "very inconclusive," David A. Relman, a microbiologist and immunologist at Stanford University who did not contribute to the research, tells the Washington Post in an email. "Frankly, the breathlessness and alacrity with which stories like this one are promoted, in the face of very incomplete and confusing 'data,' leaves me frustrated and concerned."

Of course not, but the Covid virus most likely came from the virology lab that within walking distance of market by an infected employee.

Why would one animal cause such a virulent virus. I suspect this supposed new evidence after over two and a half years is meant to take the heat off the irresponsible Chinese government.

 

 
 
 
Hallux
PhD Principal
1.1.1  Hallux  replied to  Greg Jones @1.1    last year
          Why would one animal cause such a virulent virus.
Both being animals, which do you mean, the "infected employee" or the racoon-dog?
 
 
 
Tacos!
Professor Guide
2  Tacos!    last year
the theory that the Covid-19 pandemic began with a spillover from animals to humans, as opposed to a leak from a lab

The two are not mutually exclusive. Very, very few people would make the claim that the virus was invented in the lab. The question is not “did the virus come from animals?” I think most people understand that it did. The labs do their work on viruses they find in animals, and if they are not careful, that virus can leak out into the human population. The revelation that the virus existed in raccoon dogs tells us nothing about the lab.

 
 
 
Buzz of the Orient
Professor Expert
2.1  Buzz of the Orient  replied to  Tacos! @2    last year

I believe that notwithstanding the theories and the "most likely's" and the "probables" and the "low confidences" it will NEVER be determined what the actual real source was.  But, have fun everyone, a teeter-totter was lots of fun when I was a kid as well.

 
 
 
Greg Jones
Professor Participates
3  Greg Jones    last year

They got the virus samples from bats and enhanced the potency and deadliness of this manipulated virus.

 
 
 
Buzz of the Orient
Professor Expert
3.1  Buzz of the Orient  replied to  Greg Jones @3    last year

You should win the Nobel prize with your HIGHLY EDUCATED in the field of virology opinion.  Why weren't YOU Trump's advisor instead of Fauci?

 
 

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