Posted on 11/08/2021 10:34:51 AM PST by Red Badger
Researchers found that more than 80% of the white-tailed deer sampled in different parts of Iowa between December 2020 and January 2021 tested positive for SARS-CoV-2.
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More than 80% percent of the white-tailed deer sampled in different parts of Iowa between December 2020 and January 2021 tested positive for SARS-CoV-2. The percentage of SARS-CoV-2 positive deer increased throughout the study, with 33% of all deer testing positive. The findings suggest that white-tailed deer may be a reservoir for the virus to continually circulate and raise concerns of emergence of new strains that may prove a threat to wildlife and, possibly, to humans.
“This is the first direct evidence of SARS-CoV-2 virus in any free-living species, and our findings have important implications for the ecology and long-term persistence of the virus,” said Suresh Kuchipudi, Huck Chair in Emerging Infectious Diseases, clinical professor of veterinary and biomedical sciences, and associate director of the Animal Diagnostic Laboratory, Penn State. “These include spillover to other free-living or captive animals and potential spillback to human hosts. Of course, this highlights that many urgent steps are needed to monitor the spread of the virus in deer and prevent spillback to humans.”
According to Vivek Kapur, Huck Distinguished Chair in Global Health and professor of microbiology and infectious diseases, Penn State, while no evidence exists that SARS-CoV-2 can be transmitted from deer to humans, he believes hunters and those living in close proximity to deer may want to take precautions, including during contact with or handling the animals, by wearing appropriate personal protective equipment and getting vaccinated against COVID-19,” said Kapur.
Previous research by the USDA showed that 40% of white-tailed deer had antibodies against the coronavirus; however, Kuchipudi and his colleagues note that those antibodies only indicated indirect exposure to SARS-CoV-2 or an immunologically related organism and did not prove infection with SARS-CoV-2 or the ability to transmit the virus onwards.
In this new study — which posted on the pre-print server bioRxiv on November 1 and will be submitted to a peer-reviewed journal — the team examined nearly 300 samples collected from deer across the state of Iowa during the peak of human COVID-19 infection in 2020. The samples — extracted from deer retropharyngeal lymph nodes, which are located in the head and neck — had been collected by the Iowa Department of Natural Resources as part of its routine statewide Chronic Wasting Disease surveillance program. The team tested the samples for SARS-CoV-2 viral RNA using a real-time reverse transcription polymerase chain reaction (RT-PCR) assay, which provides direct evidence of infection with the virus.
“We found that 80% of the sampled deer in December were positive for SARS-CoV-2, which proportionally represents about a 50-fold greater burden of positivity than what was reported at the peak of infection in humans at the time,” said Kuchipudi. “The number of SARS-CoV-2 positive deer increased over the period from April to December 2020, with the greatest increases coinciding with the peak of deer hunting season last year.”
The team also sequenced the complete genomes of all the positive samples from the deer and identified 12 SARS-CoV-2 lineages, with B.1.2 and B.1.311 accounting for about 75% of all samples.
“The viral lineages we identified correspond to the same lineages circulating in humans at that time,” said Kapur. “The fact that we found several different SARS-CoV-2 lineages circulating within geographically confined herds across the state suggests the occurrence of multiple independent spillover events from humans to deer, followed by local deer-to-deer transmission. This also raises the possibility of the spillback from deer back to humans, especially in exurban areas with high deer densities.”
Kuchipudi added, “The research highlights the critical need to urgently implement surveillance programs to monitor SARS-CoV-2 spread within the deer and other susceptible wildlife species and put into place methods to mitigate potential spillback.”
Reference: “Multiple spillovers and onward transmission of SARS-Cov-2 in free-living and captive White-tailed deer (Odocoileus virginianus)” by Suresh V. Kuchipudi, Meera Surendran-Nair, Rachel M. Ruden, Michelle Yon, Ruth H. Nissly, Rahul K. Nelli, Lingling Li, Bhushan M. Jayarao, Kurt J. Vandegrift, Costas D. Maranas, Nicole Levine, Katriina Willgert, Andrew J. K. Conlan, Randall J. Olsen, James J. Davis, James M. Musser, Peter J. Hudson and Vivek Kapur, 1 November 2021, bioRxiv. DOI: 10.1101/2021.10.31.466677
The Huck Institutes of the Life Sciences at Penn State, the U.S. Department of Agriculture National Institute of Food and Agriculture, the U.S. Fish and Wildlife Service Wildlife and Sport Fish Restoration Program, the Iowa Department of Natural Resources Fish and Game Protection Fund, National Institute of Allergy and Infectious Diseases, and Houston Methodist Academic Institute Infectious Diseases Fund supported this research.
Other Penn State authors include Meera Surendran-Nair, assistant clinical professor; Michele Yon, research technologist; Ruth H. Nissly, research technologist; Lingling Li, research technologist; Bhushan M. Jayarao, professor of veterinary and biomedical sciences; Kurt J. Vandegrift, associate research professor of biology; Costas D. Maranas, Donald B. Broughton Professor of the Department of Chemical Engineering; Nicole Levine, research technologist; and Peter J. Hudson, Willaman Professor of Biology. Other authors include Rachel M. Ruden, wildlife veterinarian, Iowa Department of Natural Resources; Rahul K. Nelli, research assistant professor, Iowa State University; Katriina Willgert, graduate student, University of Cambridge; Andrew J. K. Conlan, senior lecturer in epidemiology, University of Cambridge; Randall J. Olsen, Professor of Clinical Pathology, Houston Methodist and Weill Cornell Medical College, James J. Davis, computational biologist, Argonne National Laboratory and University of Chicago; and James M. Musser, professor of pathology and genomic medicine, Houston Methodist.
Those commie chinks in Wuhan probably missheard when they were engineering it.
“You were supposed to infect the American’s BEER you idiot!”
My cat says no, but she is known to lie.................
Democrats are the reservoir for the virus hysteria to continually circulate.
I just got back from a 13 acre tract I am fixin to buy. very secluded and we will be puting a cabin on it. I can forsee taking one while sitting on the front porch. Tracks are everywhere.
Given that coronaviruses are wide spread in both animals and humans, maybe the 80% reflects that the particular testing isn’t specific enough for SARS-Cov-2?
mewzilla wrote:
SARS-CoV-2 exposure in wild white-tailed deer (Odocoileus virginianus)
“Read carefully.”
Waiting for the feral hog population to weigh in... bet they carry it too. This is never going away.
SS1
But even if hunting is banned, along with all those icky guns, the deer will still have to be masked and vaxxed so we don’t get COVID when we hug them. Or worse yet, so the deer don’t get COVID from us.
OMG!!
KILL BAMBI, the evil bastid!
/s
OH Deer
Long past time for the deer to mask up and social distance during rutting season.
Now that’s rut I’m talking about!
Yup! The ammo is tainted! Quarantine all ammo!!
Deer don’t have immune systems? They just continually circulate viruses?
Let’s paint their tails red.
“Wait till they start testing horses...”
I hear the goats in the Middle East have been decimated by a polymicrobial infection: Covid-19/Syphilis.
Oh deer!
ewwwwwww
So the deer in Iowa have the virus. Do deer swim rivers? Or can the virus in deer be confined to west of the Mississippi and north of the Missouri?
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