A domestic cat in Grant County, Washington, has died after testing positive for Highly Pathogenic Avian Influenza (HPAI), also known as bird flu. The Washington State Department of Agriculture (WSDA) confirmed the case and noted that further subtyping is ongoing, but current evidence suggests the virus matches other H5 detections found in wild and domestic birds across the state.
The infected cat was an outdoor pet and had contact with a dead wild bird before falling ill. According to authorities, wild animals and birds can carry diseases like avian influenza that may infect pets who spend time outside. Recent surveillance by the Department of Fish and Wildlife has found avian influenza in various wildlife species, including hawks, owls, eagles, raccoons, and skunks. These animals often scavenge infected birds.
“Many migratory birds overwinter in fields, backyards and around water sources across Washington State,” said Dr. Amber Itle, WSDA State Veterinarian. “As birds concentrate, so does the avian influenza virus, increasing the risk of environmental contamination and spillover into domestic poultry, wild predatory species, and even our beloved outdoor domestic cats. We encourage pet owners to continue to take simple precautions to reduce risk, especially keeping your birds and cats away from wild birds and their shared environments.”
Health officials say there have been no human infections linked to this case so far. The Grant County Health District has coordinated with WSDA and the Washington State Department of Health to provide guidance for people who were in contact with the cat.
Authorities emphasize that this case is not related to contaminated commercial pet food; rather, it highlights risks faced by outdoor companion animals through environmental exposure.
Avian influenza primarily affects birds—especially wild waterfowl—but it can also infect mammals such as cats, foxes, skunks, raccoons, seals, and livestock like dairy cattle. Surveillance by the Washington Department of Fish & Wildlife continues to monitor wildlife for signs of infection. The WSDA reports no cases detected among Washington livestock or dairy herds at this time.
Cats are susceptible to bird flu if they come into contact with infected live or recently dead wild birds or other wildlife; drink raw milk from infected animals; or eat contaminated raw or undercooked meat or raw pet food diets. Symptoms in cats may include reduced energy or appetite; respiratory issues like coughing or sneezing; or neurological problems such as difficulty walking or tremors.
To lower risks during periods when wildlife diseases are active:
– Keep cats indoors when possible.
– Limit unsupervised outdoor activity for pets.
– Practice good hygiene after handling pets.
– Prevent hunting dogs from retrieving sick/dead birds.
– Do not feed pets raw milk products or uncooked meats.
– Consult veterinarians if pets show signs of illness.
If someone must handle a sick animal suspected of having HPAI, officials recommend using personal protective equipment (PPE) and avoiding direct contact whenever possible. Residents should report sick or dead domestic animals to WSDA either online or by calling 1-800-606-3056. Reports regarding sick/dead wild birds should be made via the Washington Department of Fish & Wildlife’s online form.
Additional information on avian influenza is available from WSDA, the Washington State Department of Health, as well as federal resources provided by APHIS.
