<
https://www.sciencealert.com/virus-behind-covid-19-now-rampant-in-wild-animals-study-finds>
'The virus responsible for COVID-19 is now widespread in wildlife. A new study
in the US identified exposure rates of up to 60 percent in some species.
"I think the big take-home message is the virus is pretty ubiquitous," says
Virginia Tech conservation biologist Amanda Goldberg. "We found positives in a
large suite of common backyard animals."
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 antibodies indicating they'd been infected with
SARS-CoV-2 at some point.
Most of the infected species are common across North America and the
researchers think it's likely that wildlife exposure to the virus is
widespread.
But Goldberg and colleagues stress that they found no evidence of SARS-CoV-2
being transmitted back to humans from wildlife.
Sites with high human activity had three times the prevalence of viral
antibodies in animals, suggesting that, as with most diseases, humans are doing
the majority of the spreading. Humans pass on twice as many viruses to other
animals as we receive from them.
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.
The species found to have been infected included eastern cottontail rabbits
(
Sylvilagus floridanus), racoons (
Procyon lotor), eastern deer mice
(
Peromyscus maniculatus), Virginia opossums (
Didelphis virginiana),
groundhogs (
Marmota monax), and eastern red bats (
Lasiurus borealis).
Not all species showed symptoms of the virus or viral shedding when tested in
laboratory conditions.
"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," explain the researchers.
Multiple animals tested positive for current infections at the same sites
within four days of each other, suggesting animal-to-animal transmission is
occurring.'
Via Violet Blue’s
Pandemic Roundup: August 15, 2024
https://www.patreon.com/posts/pandemic-roundup-110132360
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics