Saturday, November 2, 2024

First Case Of COVID-19 In California Wildlife Confirmed In A Mule Deer

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The following is a press release issued by the California Department of Fish and Wildlife:


[Stock image from CDFW]

SARS-CoV-2, the virus that causes COVID-19, has been detected for the first time in free-ranging California wildlife.

One hunter-harvested mule deer, a buck from El Dorado County, was confirmed to be infected with SARS-CoV-2. The deer was harvested in 2021 and sampled by the California Department of Fish and Wildlife (CDFW) for chronic wasting disease (CWD) surveillance. It was negative for CWD and did not show any outward signs of illness.

In California, SARS-CoV-2 has been confirmed in pets and zoo animals, but never in free-ranging wildlife. Following reports of SARS-CoV-2 detections in free-ranging white-tailed deer and mule deer in other states and Canadian provinces, CDFW tested archived deer samples for SARS-CoV-2. The samples consisted of lymph nodes collected as part of CDFW’s CWD surveillance efforts. CWD has never been detected in California’s deer or elk populations.

CDFW submitted archived samples from 170 black-tailed and mule deer collected in 2020 and 209 black-tailed and mule deer collected in 2021. Initial testing for SARS-CoV-2 was conducted at the California Animal Health and Food Safety Laboratory at UC Davis, and confirmatory testing was conducted by the U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Services (APHIS) National Veterinary Services Laboratories in Ames, Iowa.

“Others have shown that deer can be infected with SARS-CoV-2 and that they can pass it to other deer but do not get sick,” said Dr. Brandon Munk, senior wildlife veterinarian with CDFW. “We do not see SARS-CoV-2 as a threat to our deer populations but we continue to work with partners to better understand what, if any, significance SARS-CoV-2 infections in wildlife may pose to wildlife and people. This is certainly another reminder not to intentionally feed deer. Artificially congregating deer increases the likelihood of spreading disease and may be a source of SARS-CoV-2 exposure for deer.”

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There is no evidence that people can contract COVID-19 by eating meat from an infected animal. Nonetheless, hunters are encouraged to take appropriate precautions when handling and dressing game and practice good food hygiene when processing their animals.

The Centers for Disease Control and Prevention(opens in new tab) states that although people can spread SARS-CoV-2 to animals, especially during close contact, the risk of animals spreading SARS-CoV-2 to people is considered low. The Association of Fish and Wildlife Agencies developed guidance (PDF)(opens in new tab) pertaining to SARS-CoV-2 in white-tailed deer.

USDA APHIS reports confirmed cases of SARS-CoV-2 in animals across the United States(opens in new tab). Since 2021, APHIS has been monitoring SARS-CoV-2 infections in free-ranging deer (PDF)(opens in new tab). CDFW is collaborating with USDA APHIS and others to sample and test more California deer for SARS-CoV-2.

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4 COMMENTS

  1. What now? Kill off all the deer, and the family dogs and cats. What kind of test was done? PCR? Laughable. The wasting disease is a potential problem. Another man made affront to the natural order.

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MendoFever Staff
MendoFever Staff
Editor's Note: Whenever an article's byline reads "MendoFever Staff", the contents of that article were not composed by any of our reporters. Types of writing that will be attributed to "MendoFever Staff" include press releases, letters to the editor, op-eds, obituaries— essentially writing that is not produced by a reporter.

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