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H5N1 Bird Flu Detections across the United States in Wild Birds

What to know

The latest H5N1 bird flu detections in wild birds by state and county are provided on this webpage. This webpage will be updated daily after 4 p.m. to reflect any new data.

Wild aquatic birds - particularly certain wild ducks, geese, swans, gulls, shorebirds and terns - are the natural hosts for all known influenza type A viruses.

Summary

Counties Affected

Instructions: Counties in which bird flu has been detected in wild birds are marked in purple. On the map, select a state that has an outbreak to zoom in. More information is available about bird flu detections in wild birds by hovering over with the mouse (desktop) or tapping (mobile) the affected county. Download Data

Data Table

This data table contains information about detections of highly pathogenic avian influenza (HPAI) A(H5) viruses in wild birds in the United States. This data is provided by U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) and is published and updated regularly on its website at USDA APHIS. Data is provided by state, county, date detected, HPAI strain, type of wild bird, and sampling source.

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Content Source:
National Center for Immunization and Respiratory Diseases (NCIRD)