Current Disease Events

Highly Pathogenic Avian Influenza Continues to Affect Wild Birds Across All Four U.S. Flyways

Highly Pathogenic Avian Influenza Continues to Affect Wild Birds Across All Four U.S. Flyways

The U.S. Geological Survey’s National Wildlife Health Center (NWHC) is continuing to track the effects of highly pathogenic avian influenza (HPAI) on wild birds across the country.  From September 2025 through January 2026, wildlife agencies reported 241 bird mortality events involving more than 126,000 wild birds in 28 states. These […]

May 22, 2026 Current Disease Events, News
Highly Pathogenic Avian Influenza (HPAI) Updates- May 2026

Highly Pathogenic Avian Influenza (HPAI) Updates- May 2026

Current updates on the spread of Highly Pathogenic Avian Influenza (HPAI) in North America.

May 22, 2026 Current Disease Events, Resources
Is Chronic Wasting Disease Inevitable? Webinar with Dr. Krysten Schuler, Cornell Wildlife Health Lab

Is Chronic Wasting Disease Inevitable? Webinar with Dr. Krysten Schuler, Cornell Wildlife Health Lab

Chronic Wasting Disease (CWD) has been detected in the majority of states and provinces across North America. Many wildlife biologists wonder if it will be everywhere eventually. What will that mean for the future of wildlife management? What can we do to stop or slow the progression? Diving into the […]

Rabbit Hemorrhagic Disease Virus 2 (RHDV2) in the U.S.: Current Updates 2026

Rabbit Hemorrhagic Disease Virus 2 (RHDV2) in the U.S.: Current Updates 2026

Rabbit hemorrhagic disease virus is a highly contagious and fatal disease of wild and domestic rabbits. This disease is caused by several virus strains, including Rabbit Hemorrhagic Disease Virus Serotype 2 (RHDV2).

March 13, 2026 Current Disease Events, Resources
Chronic Wasting Disease (CWD): Current Updates 2026

Chronic Wasting Disease (CWD): Current Updates 2026

As of December 2021, Chronic Wasting Disease (CWD) has been detected in free-ranging cervids in 26 states.

March 2, 2026 Current Disease Events, Resources
2022 Detections of Highly Pathogenic Avian Influenza in Wild Birds and Poultry in the U.S.

2022 Detections of Highly Pathogenic Avian Influenza in Wild Birds and Poultry in the U.S.

Highly Pathogenic Avian Influenza (HPAI) has recently been detected in both wild and domestic birds in multiple states across the U.S.

February 26, 2022 Current Disease Events, News
First Confirmed Case of Chronic Wasting Disease (CWD) in Louisiana

First Confirmed Case of Chronic Wasting Disease (CWD) in Louisiana

The National Veterinary Services Laboratory has confirmed a case of Chronic Wasting Disease (CWD) in a Louisiana white-tailed deer.

February 26, 2022 Current Disease Events, News
USDA Confirms Highly Pathogenic Avian Influenza in Commercial and Backyard Poultry in Kentucky and Virginia

USDA Confirms Highly Pathogenic Avian Influenza in Commercial and Backyard Poultry in Kentucky and Virginia

State and Federal partners are working jointly on additional surveillance and testing in areas around the affected flocks.

February 15, 2022 Current Disease Events, News
Photo by Free Nature Stock on Pexels.com

Virus that threatens porcupines turns up in Maine

At least 3 porcupines in Maine have died from skunk adenovirus 1, which could be an emerging disease in the species.

January 15, 2022 Current Disease Events, News
National Wildlife Health Center Bulletin: SARS-CoV-2 and North American Wildlife

National Wildlife Health Center Bulletin: SARS-CoV-2 and North American Wildlife

Read and download the latest Wildlife Health Bulletin from the USGS National Wildlife Health Center, published December 7, 2021.