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is now widespread in wildlife. A new study in the US identified exposure rates of up to 60 percent in some species.Testing almost 800 nasal and oral swabs from animals in rehabilitation centers or that were trapped and released in the wild, the researchers identified six different species with
But Goldberg and colleagues stress that they found no evidence of SARS-CoV-2 being transmitted back to humans from wildlife. As humans rarely come into physical contact with wildlife, the researchers suspect most wildlife exposure to SAR-CoV-2 occurs indirectly through trash and wastewater."Our results highlight that evaluating the importance of each species in the context of a broader community of hosts will be critical for controlling future zoonotic disease risk,"
Analyzing 126 blood samples, the researchers found most of the strains in the wildlife were the same as those found in humans. But they did detect one previously unreported mutation in the virus taken from an opossum. This mutation may make it easier for the virus to avoid our current antibodies.
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