Third US Human Bird Flu Death Reported in Washington State Dairy Farm Worker

Third Human Fatality from Bird Flu

A person in Washington state has died from bird flu following exposure at an infected dairy farm. This marks the third human death in the United States attributed to the H5N1 avian influenza strain since it began affecting dairy cows in March 2024. The individual, a resident of Yakima County, reportedly had underlying health conditions that may have increased vulnerability to the infection.

Context of Transmission

The H5N1 strain of highly pathogenic avian influenza (HPAI) made an unprecedented jump from wild, migratory birds to dairy cows, with the first US case in cattle reported in March 2024. This recent human fatality underscores the ongoing risk of zoonotic transmission, particularly for individuals in close contact with infected livestock.

Public Health Response and Risk Assessment

Washington state health officials reported the death on Sunday, while also announcing a third non-fatal human case in Yakima County. Officials emphasized that while this outcome is serious, the risk to the general public remains low. The Yakima Health District stated that avian influenza can cause severe illness, especially in individuals with pre-existing health conditions.

Additional Cases in Washington

Since the virus was detected in Washington dairy cattle on October 8, three people in Yakima County have tested positive for bird flu. The other two individuals, who also had exposure to infected dairy herds, have not experienced severe illness or required hospitalization. Authorities are withholding further personal details about the deceased out of respect for family privacy.