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Avian Influenza

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Ten Viral Particles Can Infect Dairy Cows, Study Shows

Mammary‑gland replication that produces high viral loads in milk raises spillover risk, prompting experts to urge cattle vaccination.

Wisconsin Confirms First 2026 H5N1 Case in Jefferson County Poultry Flock

H5N1 Bird Flu Confirmed in Año Nuevo Elephant Seal Pups, First Detection in California Marine Mammals

Suspected Bird Flu Triggers Park Closures in New Jersey as 1,100 Dead or Sick Birds Reported

Colorado Declares Disaster, Quarantines Weld County Egg Farm After H5N1 Confirmation

Colorado Declares Disaster Over Presumptive Bird Flu Outbreak at Weld County Egg Farm

Winter Springs Confirms Avian Flu Outbreak After Ducks Found Dead at Torcaso Park

Orlando Confirms Avian Flu Killed 19 Lake Eola Swans as Park Logs 21 Bird Deaths

Orlando Updates Lake Eola Bird Deaths: 9 Swans Among 11 Dead as Avian Flu Suspected

New Simulation Finds H5 Bird Flu Could Reach Community Spread in 48 Hours

Hundreds of Snow Geese Found Dead at Pa. Quarry in Suspected Bird Flu Case

Texas Confirms First 2025 Bird Flu Case in a Shelby County Poultry Flock

Wisconsin Confirms First H5N1 Case in Dairy Cattle in Dodge County

Washington Reports First Human H5N5 Bird Flu Case Following Patient’s Death

Washington State Resident Dies in World’s First Human H5N5 Bird Flu Case

First Known Human H5N5 Bird Flu Case Turns Fatal, Washington Officials Say

Washington Confirms First Human Case of H5N5 Bird Flu

Washington Confirms First Human H5N5 Bird Flu Case

Washington Confirms First Human H5N5 Bird-Flu Case as CDC Maintains Low Public Risk

After Supreme Court Rebuff, CFIA Completes Ostrich Cull as RCMP Launches Probes