House Cat Dies From Bird Flu In San Diego County

SAN DIEGO, CA — An East County house cat died from a suspected case of bird flu, public health officials announced this week.

The indoor cat died mid-January after eating raw pet food, according to health officials. Preliminary test results showed the cat was positive for bird flu.

This is the first case of bird flu in a cat in San Diego County. All other cases of bird flu in cats statewide are believed to have happened after the animals ate raw food or raw milk, according to health officials.

Bird flu or H5N1 is a highly contagious virus that can sicken or kill birds and other animals. In 2024, there were six cases of bird flu in wild gulls in the county. No wildlife cases have been confirmed so far in 2025, and no cases have been reported in people, health officials said.

"Bird Flu has been devastating for wildlife populations around the globe, poultry and dairy cattle in our country and has infrequently affected people and cats," said Dr. Seema Shah, medical director of the county's epidemiology and immunization services branch.

"The county is actively monitoring wild birds and expanding testing, along with keeping tabs on people exposed to those animals in case they exhibit symptoms. We are also working with veterinarians, healthcare providers, farmers and wildlife groups to provide guidance and resources."

Residents were advised to avoid consuming raw milk or dairy products. Pet owners should not give raw food or raw food to pets.

Cat owners were advised to keep cats indoors and supervise outdoor pets. People should also avoid touching sick or dead birds or animals and report them to animal control.

Signs of bird flu in cats include neurologic issues like lack of coordination, tremors, seizures or blindness, loss of appetite, discharge from the eyes and nose and other respiratory issues such as breathing fast, sneezing or coughing.