Washington death linked to bird flu from cattle

Health officials confirmed that a resident of Washington state died from complications of avian influenza, marking the first bird-flu death in the United States this year and the third fatal case recorded since the virus re-emerged as a public-health concern in 2024.

Case linked to cattle exposure

Laboratory testing identified the virus after the individual developed severe respiratory symptoms that required hospitalization.

Investigators traced the exposure to a local dairy operation where the herd showed signs of illness, including reduced appetite and occasional coughing. Veterinarians collected nasal swabs and blood samples from the cattle, confirming the presence of the same H5N5 virus later detected in the patient’s clinical specimens.

Investigation of the dairy farm

Detailed reviews of the farm’s animal-health records are underway, focusing on recent vaccination logs, feed-source invoices, and biosecurity protocols that were in place at the time of the outbreak. Samples from neighboring farms have also been sent to state laboratories to assess whether the H5N5 virus has spread beyond the initial herd.

Preliminary results from those nearby sites have not yet revealed additional positive detections, but officials stress that ongoing surveillance will continue throughout the region for several weeks.

Bird flu trends in the United States

Since 2024, the United States has recorded three deaths linked to avian influenza. The first two fatalities involved the H5N1 strain, which historically has caused more severe disease in humans.

Cases over the past few years have largely been milder than expected, leaving scientists relieved and puzzled as they assess the virus’s evolving behavior.

Researchers assessed data from six medical institutions between 2023 and early 2026, finding that injury rates for e-bikes and e-scooters rose much faster than harms from traditional, non-motorized bikes and scooters. Although older children are more often involved, a share of younger riders is affected: 24% of e-bike injuries and 44% of e-scooter trauma occurred in kids under 12.

Health agencies continue to advise the public to avoid unpasteurized milk and to report any flu-like symptoms following contact with sick livestock.

State-level actions

Washington State health officials reported that testing of cattle herds in the region is being expanded to include both symptomatic and asymptomatic animals. They are advising farms to implement stricter biosecurity measures, such as limiting visitor access, disinfecting equipment, and separating sick animals from healthy groups.

As of the latest report, no further human infections have been identified.