Environment ❯ Ecosystems ❯ Wildlife Health

Disease Spread

Avian Influenza in Wildlife Preventive Measures Impact of Climate on Wildlife Impact on Wildlife Impact on Agriculture H5N1 Contamination Risks Mosquitoes Impact of Migration Avian Influenza in Wisconsin

Polar Bear on Spitzbergen Tests Positive for H5N5 Avian Influenza

Norwegian veterinary authorities say the case shows bird flu is spreading into Arctic mammals and has prompted intensified testing and monitoring.

Netherlands Moves to Mandate Avian Flu Shots for Laying Hens

Second H5N1 Case Confirmed in Wisconsin as Dane County Backyard Flock Is Culled

H5N1 Confirmed at Chemnitz Tierpark as City Moves to Spare Birds

Avian Flu Confirmed at Wadenoijen Animal Dealer as NVWA Chooses Targeted Culling

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

Avian Flu Cluster Grows in Limburg–Brabant as Deurne Culls 162,000 Chickens

Record Wild-Bird Outbreaks Drive Early, Strong Bird Flu Wave Across Europe

England Orders Poultry Kept Indoors Nationwide as Bird Flu Spreads

Netherlands Confirms Avian Flu in Lelystad Swan as Gelderland Reports New Outbreak

Avian Flu Confirmed in Gulls on Spain’s North Coast as Galicia Logs First 2025 Cases