CDC

CDC: Undetected bird flu spread in cattle and humans

February 14, 2025

Public health officials conducted a serosurvey among 150 bovine veterinary practitioners. Three practitioners had evidence of recent infection with highly pathogenic avian influenza (HPAI) A(H5) virus, including two without exposures to animals with known or suspected HPAI A(H5) virus infections and one who didn't practice in a U.S. state with known HPAI A(H5) virus–infected cattle.

Findings suggest the possible benefit of systematic surveillance for rapid identification of HPAI A(H5) virus in dairy cattle, milk, and humans who are exposed to cattle to ensure appropriate hazard assessments.

Source:

Leonard J, et al. (2025, February 13). CDC. Notes from the Field: Seroprevalence of Highly Pathogenic Avian Influenza A(H5) Virus Infections Among Bovine Veterinary Practitioners — United States, September 2024. https://www.cdc.gov/mmwr/volumes/74/wr/mm7404a2.htm