An East County house cat, which passed away last month, has been identified as the first case of bird flu detected in a feline across San Diego County, local health officials reported on Wednesday. The cat, who had primarily been an indoor pet, died in mid-January, with raw pet food suspected as the source of the H5N1 infection.
Health officials noted that this instance marks a worrying trend since all known cases of bird flu in cats statewide have been linked to the consumption of raw foods or raw milk. Despite this being the first confirmed case among mammals in San Diego County, officials reassured the public that no wildlife cases have been reported so far this year, nor have there been any human cases, maintaining that the risk to people remains low.
In 2024, six cases of bird flu were confirmed in wild gulls within San Diego County. Dr. Seema Shah, medical director of the county’s epidemiology and immunization services branch, noted the seriousness of the virus, stating:
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.
The county is keeping a close watch on wild birds and is expanding testing efforts, as well as monitoring individuals later exposed to infected creatures, to ensure early detection of symptoms. Collaborations with veterinarians, healthcare providers, farmers, and wildlife organizations are underway to offer guidance and support.
Residents are strongly advised against the consumption of raw milk and cautioned not to provide their pets with raw food. Cat owners are recommended to keep their pets indoors and supervise them when outdoors. Additionally, residents should avoid contact with dead birds or animals and maintain proper hand hygiene when handling raw foods.
Signs of bird flu in cats can include lack of coordination, tremors, seizures or blindness, loss of appetite, and respiratory issues such as fast breathing, sneezing, or coughing. Those at higher risk of exposure include farmworkers, wildlife workers, and individuals who work closely with animals. Health officials advocate the use of personal protective equipment to minimize the risk of inhalation or contact with bodily fluids, which may carry the virus.
