Oregon becomes 22nd state to detect bird flu in dairy cattle

U.S. and Oregon agriculture officials have for the first time detected the highly contagious and, for many animals, lethal, avian influenza virus, commonly known as bird flu, in Oregon dairy cattle. The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service confirmed the case on Tuesday, saying in a news release the discovery was made as part of routine testing done by state agriculture officials. The Oregon Department of Agriculture reported that the virus was detected in a herd in Morrow County. The most recent nationwide outbreak of the virus began in March 2024 and has since reached herds in 22 states, now including Oregon, and infecting more than 1,200 cattle. Federal officials said the virus does not pose a risk to pasteurized milk and dairy consumers, and it poses low risk to the general public, though people who work or spend time recreationally with birds or mammals should take precautions outlined by the U.S. Centers for Disease Control and Prevention.

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