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A patient in Yakima County with pre-existing medical conditions has become the initial fatality linked to avian influenza nationwide this year. Public health authorities are keeping track of individuals who had close exposure, noting that the threat to the general population stays minimal.
A Yakima County resident who caught avian influenza from infected dairy cattle has died, the Yakima Health District announced on Sunday, November 1. The death is the first from bird flu in the United States this year and the third since human infections tied to the current animal outbreaks began in 2024, according to CNN.
The district did not release the person’s name, age or gender, citing the family’s privacy. In its November 1 statement, it said the patient had underlying health conditions, had been exposed to infected cattle at a Yakima County dairy and had been hospitalized with severe illness. The county had announced that hospitalization a day earlier, when it confirmed its second human case.
The same statement disclosed a third confirmed case in a county resident. That person has not been severely ill and has not been hospitalized.
Three cases tied to infected dairy herds
All three Yakima County cases were identified within roughly two and a half weeks, and each followed exposure to infected cows.
| Announced | Exposure | Illness reported by officials | Status |
|---|---|---|---|
| Oct. 15 | Infected cattle at a county dairy | Mild symptoms; no hospitalization required | Recovering in home isolation |
| Oct. 31 | Infected cattle at a county dairy | Severe manifestation; hospital admission; pre-existing health issues | Deceased (reported Nov. 1) |
| Nov. 1 | Infected cattle | Mild symptoms; no hospitalization required | Outpatient care |
The county’s releases do not state the subtype of the virus that infected the three people. The herds themselves carry highly pathogenic H5N1. Federal and state laboratories first confirmed the virus on two Yakima County dairies on October 8, the first known detection in cattle anywhere in Washington. By October 29, 33 dairy herds in the county had tested positive, the health district said.
Washington’s cattle cases arrived more than two years into a national outbreak. When the first Yakima herds were confirmed, the district noted that dairy cattle in 19 states had been infected since the outbreak began in March 2024.
Contact tracing and what “low risk” means
Public health staff are monitoring people who had close contact with the patients for symptoms, and they are working with affected dairies to find workers who may have been exposed to sick animals. Anyone exposed who develops symptoms is being offered testing. The district said it has also worked with partners to get protective equipment to dairies for their workers.
Officials describe the risk to the general public as low. The people at greater risk, according to the district, are dairy workers and others with close or prolonged contact with infected animals or contaminated environments. Human-to-human transmission of the virus is extremely rare and has never been documented in the United States, the district said.
Dr. Dave Atteberry, the district’s health officer, said that while public risk remains low, “we are taking this situation seriously.”
Nationally, the Centers for Disease Control and Prevention counted 72 human cases reported since February 2024 in its most recent situation summary, updated October 15, and described the current public health risk as low. Most people infected in the US worked on farms with infected cattle or poultry, and most illnesses have been mild, CNN reported.
Previous fatalities in the US were connected to backyard poultry
The first US death came in January 2025, when Louisiana reported that a patient older than 65 with underlying medical conditions had died after severe H5N1 illness. The CDC said at the time that it had found no person-to-person spread. That patient had been exposed to sick and dead birds in a backyard flock.
The second fatality occurred within Washington as well. During November 2025, an elderly resident suffering from pre-existing health issues, living in Grays Harbor County, passed away following an infection caused by H5N5—a specific strain that had never before been documented in human hosts. The individual maintained a backyard flock of domestic birds that had previously come into contact with wild avian populations.
The Yakima County death differs from both in its source: it followed exposure to dairy cattle rather than birds.
What officials recommend
In its October 31 release on the second case, the health district listed precautions for workers and the public:
- Dairy workers who develop symptoms after possible exposure to cattle should contact a health care provider or the health district. Symptoms can include eye redness or irritation, fever, cough, sore throat, runny nose, body aches, headache and fatigue.
- Avoid touching sick or dead animals, animal waste and surfaces that may be contaminated.
- Pasteurized milk and dairy products are safe; raw or unpasteurized milk and dairy should be avoided.
- Do not feed pets raw milk, unpasteurized dairy or raw meat. Cats are highly susceptible to H5N1.
- Seasonal flu vaccination is recommended for everyone 6 months and older. It does not prevent bird flu but lowers the chance of being infected with both viruses at once.
- Isolate livestock that appear sick and contact a veterinarian and the Washington State Department of Agriculture.
State officials are also urging dairy workers to wear personal protective equipment and to report symptoms if they become ill, CNN reported.
The health district announced that fresh updates will be published on its bird flu page each Monday and Thursday afternoon while the investigation proceeds.
