Avian influenza — commonly called bird flu — is a naturally occurring virus that spreads quickly in birds. There were documented cases of HPAI in a skunk and a fox in Montana last year,…
Three grizzly bears were euthanized in Montana after they became ill and tested positive for the highly pathogenicThese were the first documented cases of bird flu in a grizzly in Montana and the first nationwide for this outbreak of HPAI, according to Dr. Jennifer Ramsey, the department’s wildlife veterinarian.
The bears “were observed to be in poor condition and exhibited disorientation and partial blindness, among other neurological issues,” the statement said. “They were euthanized due to their sickness and poor condition.” “The virus is spread from one bird to another,” Dr. Ramsey told CNN via email. “These mammals likely got infected from consuming carcasses of HPAI infected birds.”
While finding three grizzlies with bird flu in a short period of time may raise concerns, Ramsey said it may well be that there have been more cases that haven’t been detected.
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