White-tailed deer may be a reservoir for COVID-19 variants of concern including Alpha, Delta and Gamma, according to new research out of Cornell University that raises questions about whether deer could re-introduce nearly extinct variants back into the human population.
White-tailed deer may be a reservoir for COVID-19 variants of concern that no longer circulate among people, including Alpha, Delta and Gamma, according toThe authors say the research raises questions about whether deer could re-introduce nearly extinct variants back into the human population.In a study published in the Proceedings of the National Academy of Sciences of the United States of America on Jan.
"Findings indicate that white-tailed deer – the most abundant large mammal in North America – may serve as a reservoir for variant SARS-CoV-2 strains that no longer circulate in the human population," the authors wrote, adding that the findings"raised concerns about the role of white-tailed deer in the epidemiology and ecology of the virus."
They also revealed that the viral RNA sequences in the deer were dramatically different from those in humans, suggesting the virus had adapted, or mutated, in its new hosts. "The impact of such mutations on the virus' ability to transmit between white-tailed deer or from white-tailed deer to humans is still unknown and should be investigated in the future as it may shed light on mechanisms that affect the risk of deer-to-human transmission of the virus."Most of the first known human infections were linked to the Huanan Seafood Wholesale Market in Wuhan, China, where several live wild animal species were sold.
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