Skip to main content
U.S. flag

An official website of the United States government

Distribution of Highly Pathogenic Avian Influenza in North America, 2021/2022

View Map

Status and Response to Detections of Highly Pathogenic Avian Influenza H5N1 in North America

New Wildlife Health Bulletin Released

View Bulletin

SARS-CoV-2 and North American Wildlife

In partnership with CDC, we are working to assess the prevalence of SARS-CoV-2 and the diversity of other coronaviruses in North American wildlife.

Learn more

Expanding Distribution of Chronic Wasting Disease

Track the spread of chronic wasting disease in North America.

View the Map

Wildlife Health Information Sharing Partnership event reporting system

View current and historic information on wildlife morbidity or mortality events in North America.

View Data

Pathology Case of the Month

Notable wildlife mortality cases at the NWHC are highlighted in the Pathology Case of the Month series.

Learn More

National Wildlife Health Center

Welcome to the National Wildlife Health Center! Our mission is to advance wildlife health science for the benefit of animals, humans, and the environment.

Explore SCIENCE to learn more about wildlife diseases, ongoing projects, the Honolulu Field Station, and services.

Explore WEB TOOLS to access WHISPers, wildlife health bulletins, our field manual, and more.

Index of Wildlife Disease Information Resources

Disease Investigation Services

Red-winged blackbird necropsy

Report mortality events and submit specimens.

Learn more

Wildlife Health Research Highlights

NDV Study in cormorants

Learn more about our current research projects.

Learn More

Honolulu Field Station

Hawaiian green sea turtle, Chelonia mydas

The NWHC HFS provides support to the natural resource communities of Hawaii and the Pacific Basin in the investigation of wildlife diseases.

Learn More

News

link

Grant funding will advance a novel immune-based strategy to prevent white-nose syndrome in North American bats

link

New study describes HPAI infections in wild mammals in US

link

Pathology Case of the Month - Great-horned Owl

View All

Publications

A comparison of avian influenza virus whole genome sequencing approaches using nanopore technology

As exemplified by the global response to the SARS-CoV-2 pandemic, whole-genome sequencing played an important role in monitoring the evolution of novel viral variants and provided guidance on potential antiviral treatments. The recent rapid and extensive introduction and spread of highly pathogenic avian influenza virus in Europe, North America, and elsewhere raises the need for similarly rapid se
By
Ecosystems Mission Area, National Wildlife Health Center

Mass mortality of collector urchins Tripneustes gratilla in Hawai`i

As grazers, sea urchins are keystone species in tropical marine ecosystems, and their loss can have important ecological ramifications. Die-offs of urchins are frequently described, but their causes are often unclear, in part because systematic examinations of animal tissues at gross and microscopic level are not done. In some areas, urchins are being employed to control invasive marine algae. Her
By
Ecosystems Mission Area, National Wildlife Health Center

Wild rodents harbor high diversity of Arthroderma

Arthroderma is the most diverse genus of dermatophytes, and its natural reservoir is considered to be soil enriched by keratin sources. During a study on the diversity of dermatophytes in wild small rodents in the Czech Republic, we isolated several strains of Arthroderma. To explore the diversity and ecological significance of these isolates from rodents (n = 29), we characterised the strains gen
By
Ecosystems Mission Area, National Wildlife Health Center
View All

Science

link
Map of North America showing locations where chronic wasting disease has been detected.

Expanding Distribution of Chronic Wasting Disease

Chronic wasting disease (CWD) has been detected in 30 US states and four Canadian provinces in free-ranging cervids and/or commercial captive cervid facilities. CWD has been detected in free-ranging cervids in 29 states and three provinces and in captive cervid facilities in 18 states and three provinces.
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, National Wildlife Health Center
link

Expanding Distribution of Chronic Wasting Disease

Chronic wasting disease (CWD) has been detected in 30 US states and four Canadian provinces in free-ranging cervids and/or commercial captive cervid facilities. CWD has been detected in free-ranging cervids in 29 states and three provinces and in captive cervid facilities in 18 states and three provinces.
Learn More
link
male mallard in flight

Distribution of Highly Pathogenic Avian Influenza in North America, 2021/2022

The first 2021/2022 detection of Eurasian strain (EA) highly pathogenic avian influenza (HPAI) H5N1 in North America occurred in December 2021 in Newfoundland and Labrador, Canada. Subsequently, HPAI EA H5 and EA H5N1 viruses have been confirmed in wild birds, backyard flocks, commercial poultry facilities, and wild mammals in both Canada and the United States. This HPAI distribution map will be...
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, Fish & Wildlife Disease (unpublished), National Wildlife Health Center
link

Distribution of Highly Pathogenic Avian Influenza in North America, 2021/2022

The first 2021/2022 detection of Eurasian strain (EA) highly pathogenic avian influenza (HPAI) H5N1 in North America occurred in December 2021 in Newfoundland and Labrador, Canada. Subsequently, HPAI EA H5 and EA H5N1 viruses have been confirmed in wild birds, backyard flocks, commercial poultry facilities, and wild mammals in both Canada and the United States. This HPAI distribution map will be...
Learn More
link
NDV Study in cormorants

Epidemiological Services

Professionals at the NWHC include wildlife biologists, veterinarians, statisticians, epidemiologists, and informatics specialists. This multidisciplinary group conducts investigations and disease ecology studies of emerging and recurring priority wildlife diseases, maintains and analyzes comprehensive information on wildlife disease events, and provides response and management consultation and...
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, National Wildlife Health Center
link

Epidemiological Services

Professionals at the NWHC include wildlife biologists, veterinarians, statisticians, epidemiologists, and informatics specialists. This multidisciplinary group conducts investigations and disease ecology studies of emerging and recurring priority wildlife diseases, maintains and analyzes comprehensive information on wildlife disease events, and provides response and management consultation and...
Learn More
View All