STATE COLLEGE, Pa. — The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed highly pathogenic avian influenza (HPAI) detected in domestic poultry in 24 states as of April 4, 2022.

APHIS has posted a completely re-tooled database of confirmed detections in domestic poultry, also containing a map, all of which can be manipulated to present and download information in multiple different formats and according to variable criteria. A map organized by number of birds depopulated, shows the largest outbreaks as follows: Iowa has depopulated over 13.2 million birds at 12 premises, Wisconsin has depopulated over 2.7 million birds at 2 premises, Delaware has depopulated 1.5 million birds at three premises and Maryland has depopulated 1.6 million birds at 4 premises and Nebraska has depopulated over 987,000 birds at 2 premises.

Nationwide totals are 118 separate premises/flocks, 72 of which are commercial chickens or turkeys, 46 backyard flocks of mixed species and a total of 22,851,072 birds depopulated.

— Penn State Center for Agricultural and Shale Law