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

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

New Wildlife Health Bulletin Released

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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.

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Expanding Distribution of Chronic Wasting Disease

Track the spread of chronic wasting disease in North America.

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Wildlife Health Information Sharing Partnership event reporting system

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

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Pathology Case of the Month

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

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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.

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Wildlife Health Research Highlights

NDV Study in cormorants

Learn more about our current research projects.

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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.

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News

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Pathology Case of the Month - Bottlenose Dolphin

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Pathology Case of the Month - Bald Eagle

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COVID-19 virus can infect Mexican free-tailed bats

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Publications

Social effects of rabies infection in male vampire bats (Desmodus rotundus)

Rabies virus (RABV) transmitted by the common vampire bat (Desmodus rotundus) poses a threat to agricultural development and public health throughout the Neotropics. The ecology and evolution of rabies host-pathogen dynamics are influenced by two infection-induced behavioral changes. RABV-infected hosts often exhibit increased aggression which facilitates transmission, and rabies also leads to red
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Ecosystems, Biological Threats and Invasive Species Research Program, Species Management Research Program, National Wildlife Health Center

Evaluating the effect of nuclear inclusion X (NIX) infections on Pacific razor clam populations

ABSTRACT: Nuclear inclusion X (NIX), the etiological agent of bacterial gill disease in Pacific razor clams Siliqua patula, was associated with host mortality events in coastal Washington State, USA, during the mid-1980s. Ongoing observations of truncated razor clam size distributions in Kalaloch Beach, Washington, raised concerns that NIX continues to impact populations. We conducted a series of
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Ecosystems, Fisheries Program, National Wildlife Health Center, Western Fisheries Research Center

A recombinant rabies vaccine that prevents viral shedding in rabid common vampire bats (Desmodus rotundus)

Vampire bat transmitted rabies (VBR) is a continuing burden to public health and agricultural sectors in Latin America, despite decades-long efforts to control the disease by culling bat populations. Culling has been shown to disperse bats, leading to an increased spread of rabies. Thus, non-lethal strategies to control VBR, such as vaccination, are desired. Here, we evaluated the safety and effic
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Ecosystems, Biological Threats and Invasive Species Research Program, National Wildlife Health Center
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Science

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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...
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Ecosystems, Biological Threats and Invasive Species Research Program, Fish & Wildlife Disease, National Wildlife Health Center
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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...
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Testing for Avian Influenza

Avian Influenza Surveillance

The USGS National Wildlife Health Center (NWHC) conducts surveillance in wild birds to facilitate early detection and situational awareness for high consequence pathogens, including highly pathogenic avian influenza (HPAI) viruses.
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Ecosystems, Biological Threats and Invasive Species Research Program, National Wildlife Health Center
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Avian Influenza Surveillance

The USGS National Wildlife Health Center (NWHC) conducts surveillance in wild birds to facilitate early detection and situational awareness for high consequence pathogens, including highly pathogenic avian influenza (HPAI) viruses.
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Photomicrographs from a Ross’s Goose. Features are purple and pink.

Pathology Case of the Month

Notable cases at the National Wildlife Health Center are highlighted here in the Pathology Case of the Month Series.
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Biological Threats and Invasive Species Research Program, National Wildlife Health Center
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Pathology Case of the Month

Notable cases at the National Wildlife Health Center are highlighted here in the Pathology Case of the Month Series.
Learn More
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