H5N1 Bird Flu Spreads Across US Dairy Herds and Wildlife, Global Cases Rise with Ongoing Surveillance Efforts
Published: December 31, 2025
Duration: 2:45
Bird Flu Bulletin: Daily H5N1 Update
Wednesday, December 31, 2025.
Good evening, this is your Daily H5N1 Update.
Top stories from the last 24 hours.
First, the CDC reports U.S. human cases remain steady at 71 since early 2024, with no new confirmations today, matching yesterday's total from their situation summary. Exposure sources include 41 from dairy herds and 24 from poultry operations.
Second, a new H5N1 outbreak hit a Wisconsin dairy herd, likely spread by wildlife, according to the American Veterinary Medical Association. This adds to 989 affected U.S. dairy herds across 17...
Wednesday, December 31, 2025.
Good evening, this is your Daily H5N1 Update.
Top stories from the last 24 hours.
First, the CDC reports U.S. human cases remain steady at 71 since early 2024, with no new confirmations today, matching yesterday's total from their situation summary. Exposure sources include 41 from dairy herds and 24 from poultry operations.
Second, a new H5N1 outbreak hit a Wisconsin dairy herd, likely spread by wildlife, according to the American Veterinary Medical Association. This adds to 989 affected U.S. dairy herds across 17...