USDA Confirms Highly Pathogenic Avian Influenza in Dairy Herd in Nebraska

Today, the USDA Animal and Plant Health Inspection Service (APHIS) National Veterinary Services Laboratories (NVSL) confirmed a detection of highly pathogenic avian influenza (HPAI) H5N1 clade 2.3.4.4b, genotype B3.13 in a dairy cattle herd in Nebraska. This confirmation was a result of State tracing and investigation, following an initial detection from pre-movement surveillance milk samples required under USDA’s April 2024 Federal Order.