11/20/2025
Thurdsay, November 20, 2025 - Highly Pathogenic Avian Influenza (HPAI) Update
It has been a few months since we last provided an update on the HPAI situation.
The good news is that Missouri hasn't had a positive HPAI case in a poultry flock since March 2025. However, there have been recent detections of HPAI in wild birds in Missouri.
Additionally, HPAI remains active in poultry flocks across the United States.
Recent detections:
Poultry - In the last 30 days, the USDA has detected 86 confirmed cases of Highly Pathogenic Avian Influenza (HPAI) in poultry flocks across 21 states. This impacts over 1.84 million birds across 38 commercial flocks and 48 backyard flocks. Impacted states include California, Delaware, Georgia, Idaho, Illinois, Indiana, Michigan, Minnesota, Montana, New Hampshire, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Dakota, Texas, Virginia, Washington, and Wyoming.
Livestock - There have been no detections in livestock in the last 30 days.
Wild Birds - In the last 30 days, there have been detections of HPAI in wild birds in 31 states across the United States.
Mammals - In the last 30 days, there have been detections reported in two states: Wyoming (skunks) and Washington (mice).
Note: Detections listed are what has been reported by USDA APHIS at this time. Sometimes the list is not updated for a few days.
Data source: https://www.aphis.usda.gov/h5n1-hpai -hpai