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Diseases of Terrestrial Wildlife

USGS is the lead Federal agency for wildlife disease research and surveillance. Congress and our partners rely on our science to make informed decisions about fish and wildlife disease policy, planning and management. 

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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 Mission Area, Biological Threats and Invasive Species Research Program, 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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Elk on a feedground in Wyoming.

Brucellosis

Brucellosis is a nationally and internationally regulated disease of livestock with significant consequences for animal health, public health, and international trade.
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Ecosystems Mission Area, Contaminant Biology, Northern Rocky Mountain Science Center
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Brucellosis

Brucellosis is a nationally and internationally regulated disease of livestock with significant consequences for animal health, public health, and international trade.
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