Avian Influenza A(H5N1) Isolated from Dairy Farm Worker, Michigan
Nicole Brock, Joanna A. Pulit-Penaloza, Jessica A. Belser, Claudia Pappas, Xiangjie Sun, Troy J. Kieran, Hui Zeng, Juan A. De La Cruz, Yasuko Hatta, Han Di, C. Todd Davis, Terrence M. Tumpey, Taronna R. Maines
Abstract
Influenza A(H5N1) viruses have been detected in US dairy cow herds since 2024. We assessed the pathogenesis, transmission, and airborne release of A/Michigan/90/2024, an H5N1 isolate from a dairy farm worker in Michigan, in the ferret model. Results show this virus caused airborne transmission with moderate pathogenicity, including limited extrapulmonary spread, without lethality.
Topics & Concepts
Influenza A virus subtype H5N1Transmission (telecommunications)Veterinary medicinePathogenicityVirologyInfluenza A virusBiologyAvian influenza virusDairy cattleHerdHighly pathogenicVirusMicrobiologyMedicineAnimal scienceEngineeringElectrical engineeringInfluenza Virus Research StudiesRespiratory viral infections researchAnimal Disease Management and Epidemiology