Avian Influenza's Leap from Poultry to Cattle

On this episode of Unplucked, host Andy Vance sits down with Dr. Scott Kenney of The Ohio State University to unpack how highly pathogenic avian influenza appeared in dairy cattle and what that means for poultry producers. Dr. Kenney explains the virology in plain language, from receptor binding and reassortment to why certain tissues act like virus factories. He shares results from high-containment studies showing that intranasal exposure produced limited disease in cows, while direct exposure of the mammary gland led to severe illness and extremely high virus levels in milk, and he connects those findings to practical risks in milking parlors and waste-milk handling.

 

The conversation moves from lab to barn with clear takeaways on biosecurity and surveillance, including why pasteurizing waste milk and tightening traffic in and out of milking areas can reduce cross-species transmission risk. Dr. Kenney also frames the situation through a One Health lens, discussing how to monitor for mammalian adaptation, what producers should watch as migration season approaches, and how vaccines and antivirals fit into preparedness for animals and people.

 

Legal: The information provided in this episode of Unplucked is for informational and educational purposes only and should not be considered professional advice. While we discuss scientific research, public health, and industry practices, this podcast does not substitute for advice from qualified industry and scientific professionals. The views expressed in this episode are solely those of the host and guests and do not necessarily reflect the official opinions of The Poultry Science Association, their respective affiliates, or employees.