Author Interviews, COVID -19 Coronavirus, Environmental Risks / 27.07.2023
Study Raises Concerns About Potential for Deer to Serve as Reservoir for SARS-CoV-2
MedicalResearch.com Interview with:
Dr. Thomas Deliberto, PhD, DVM, APHIS
Wildlife Services One Health Coordinator
MedicalResearch.com: What is the background for this study?
Response: In 2021, USDA launched a pilot study to investigate exposure of wild white-tailed deer (Odocoileus virginianus) to SARS-CoV-2, a zoonotic virus and the virus that causes COVID-19. Researchers found that 40% of the blood samples tested had SARS-CoV-2 antibodies. This initial study suggested that SARS-CoV-2 could be transmitted from humans to deer, and that deer could potentially serve as a reservoir for the virus.
To better understand the transmission of SARS-CoV-2 in white-tailed deer, a team of researchers conducted a larger study to collect and analyze respiratory samples from free-ranging white-tailed deer in the United States. The study identified SARS-CoV-2 sequences in white-tailed deer across nearly half of the states in the U.S. The researchers also found that deer could be infected with multiple SARS-CoV-2 lineages, and that these lineages could be transmitted from deer to deer.
In addition, the researchers found three cases of potential virus transmission from white-tailed deer back to humans. This raises concerns about the potential for the virus to continue to evolve in an animal reservoir, and the possibility of future spillover events.
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