H5N1 Bird Flu Detections across the United States in Backyard and Commercial Poultry

What to know

Highly pathogenic avian influenza (HPAI) A(H5) viruses have been detected in U.S. wild aquatic birds, commercial poultry and backyard or hobbyist flocks beginning in January 2022. The latest H5N1 bird flu detections in backyard and commercial poultry by state and county are provided on this webpage. This webpage will be updated daily after 4 p.m. to reflect any new data.

Hens in a paddock


Counties Affected

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

Data Table

This data table contains information about bird flu outbreaks involving commercial poultry facilities, backyard poultry and hobbyist bird flocks 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, outbreak date, flock type and flock size.

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