Shiloh
Editor, Senior Moderator
Source: https://news.osu.edu/covid-19-infection-detected-in-deer-in-6-ohio-locations/
Dec 23, 2021
COVID-19 infection detected in deer in 9 Ohio locations
Scientists unsure if wild deer could be SARS-CoV-2 virus reservoir
Emily Caldwell
Ohio State News
Scientists have detected infection by at least three variants of the virus that causes COVID-19 in free-ranging white-tailed deer in six northeast Ohio locations, the research team has reported.
Previous research led by the U.S. Department of Agriculture had shown evidence of antibodies in wild deer. This study, published today in Nature, details the first report of active COVID-19 infection in white-tailed deer supported by the growth of viral isolates in the lab, indicating researchers had recovered viable samples of the SARS-CoV-2 virus and not only its genetic traces.
Based on genomic sequencing of the samples collected between January and March 2021, researchers determined that variants infecting wild deer matched strains of the SARS-CoV-2 virus that had been prevalent in Ohio COVID-19 patients at the time. Sample collection occurred before the Delta variant was widespread, and that variant was not detected in these deer. The team is testing more samples to check for new variants as well as older variants, whose continued presence would suggest the virus can set up shop and survive in this species.
The fact that wild deer can become infected “leads toward the idea that we might actually have established a new maintenance host outside humans,” said Andrew Bowman, associate professor of veterinary preventive medicine at The Ohio State University and senior author of the paper.
“Based on evidence from other studies, we knew they were being exposed in the wild and that in the lab we could infect them and the virus could transmit from deer to deer. Here, we’re saying that in the wild, they are infected,” Bowman said. “And if they can maintain it, we have a new potential source of SARS-CoV-2 coming in to humans. That would mean that beyond tracking what’s in people, we’ll need to know what’s in the deer, too.
“It could complicate future mitigation and control plans for COVID-19.”
A lot of unknowns remain: how the deer got infected, whether they can infect humans and other species, how the virus behaves in the animals’ body, and whether it’s a transient or long-term infection...
Dec 23, 2021
COVID-19 infection detected in deer in 9 Ohio locations
Scientists unsure if wild deer could be SARS-CoV-2 virus reservoir
Emily Caldwell
Ohio State News
Scientists have detected infection by at least three variants of the virus that causes COVID-19 in free-ranging white-tailed deer in six northeast Ohio locations, the research team has reported.
Previous research led by the U.S. Department of Agriculture had shown evidence of antibodies in wild deer. This study, published today in Nature, details the first report of active COVID-19 infection in white-tailed deer supported by the growth of viral isolates in the lab, indicating researchers had recovered viable samples of the SARS-CoV-2 virus and not only its genetic traces.
Based on genomic sequencing of the samples collected between January and March 2021, researchers determined that variants infecting wild deer matched strains of the SARS-CoV-2 virus that had been prevalent in Ohio COVID-19 patients at the time. Sample collection occurred before the Delta variant was widespread, and that variant was not detected in these deer. The team is testing more samples to check for new variants as well as older variants, whose continued presence would suggest the virus can set up shop and survive in this species.
The fact that wild deer can become infected “leads toward the idea that we might actually have established a new maintenance host outside humans,” said Andrew Bowman, associate professor of veterinary preventive medicine at The Ohio State University and senior author of the paper.
“Based on evidence from other studies, we knew they were being exposed in the wild and that in the lab we could infect them and the virus could transmit from deer to deer. Here, we’re saying that in the wild, they are infected,” Bowman said. “And if they can maintain it, we have a new potential source of SARS-CoV-2 coming in to humans. That would mean that beyond tracking what’s in people, we’ll need to know what’s in the deer, too.
“It could complicate future mitigation and control plans for COVID-19.”
A lot of unknowns remain: how the deer got infected, whether they can infect humans and other species, how the virus behaves in the animals’ body, and whether it’s a transient or long-term infection...
