Bird Flu Devastates 7.4 Million Pennsylvania Chickens in a Month

CHICAGO—Bird flu has wiped out 7.4 million chickens in ‌Pennsylvania in the past month, a swift and devastating loss that veterinarians and industry members suspect may be linked to an unusually cold ‌winter. Infections of flocks raised to produce eggs and meat extend ⁠a U.S. outbreak that began four years ago and has eliminated 196 […]