Detections of Highly Pathogenic Avian Influenza (HPAI) in Livestock
The U.S. Department of Agriculture, Food and Drug Administration, Centers for Disease Control and Prevention, and State veterinary and public health officials are investigating cases of highly pathogenic avian influenza (HPAI) in dairy cows.
APHIS is providing confirmatory testing for samples from livestock as well as guidance for producers, veterinarians, and State animal health officials. As the situation changes, we will continue to post updated information below.
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Resources for HPAI Detections in Livestock
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- VS-HPAI-Dairy Herd Status Program
- USDA Announces $824 Million in New Funding to Protect Livestock Health; Launches Voluntary H5N1 Dairy Herd Status Program (5/30/24)
Dairy Herd Status Program - Herd Enrollment by State
*Information is updated Wednesdays by 4 p.m. ET
| State | Number of Enrolled Herds |
|---|---|
| Kansas | 1 |
| Michigan | 7 |
| Nebraska | 1 |
| New Mexico | 4 |
| North Carolina | 1 |
| Ohio | 1 |
| Pennsylvania | 3 |
| South Dakota | 1 |
| Tennessee | 1 |
| Texas | 1 |
| Total | 21 |
- USDA Support for Dairy Herd Producers (532.04 KB) (7/5/24)
- USDA Support Options for Dairy Herd Producers (801.88 KB) (7/5/24)
- Emergency Assistance for Livestock, Honey Bees, and Farm-raised Fish (ELAP) (usda.gov) (7/3/24)
- USDA Offers Assistance and Resources for Recovery from and Prevention of Highly Pathogenic Avian Influenza H5N1 in Dairy Herds (7/1/24)
- USDA Expands Support for Producers to Stop the Spread of H5N1 in Dairy Cattle (5/23/24)
Financial Support for Producers - Enrolled Premises by State
*Information is updated Wednesdays by 4 p.m. ET
| State | Number of Enrolled Herds |
|---|---|
| Alabama | 1 |
| Colorado | 8 |
| Idaho | 1 |
| Iowa | 7 |
| Michigan | 18 |
| Minnesota | 1 |
| New Jersey | 1 |
| New Mexico | 1 |
| New York | 1 |
| North Carolina | 1 |
| Wisconsin | 1 |
| Wyoming | 1 |
| TOTAL | 42 |
| Updated | Document |
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Testing at National Animal Health Laboratory Network (NAHLN) and National Veterinary Services Laboratories (NVSL) is complex; the number of tests conducted is not equivalent to animals tested. The testing figure may include multiple samples collected from a single animal, samples tested independently or pooled, samples tested more than once, and testing for purposes such as on-farm research studies to continue to learn more about this virus in livestock. As such, the number of affected herds provides a much more accurate picture of the evolving situation than the number of tests conducted.
Testing information is updated weekly on Wednesdays by 4 p.m. ET.
- Total PCR tests run at NAHLN and NVSL (since April 2024): >31,000
- Pre-movement tests conducted under the Federal Order: 8,766
Genetic Sequencing
USDA Publishes H5N1 Influenza A Virus Genetic Sequences on Publicly Available Site (4/21/2024)
Genetic sequences are available at the National Center for Biotechnology Information's Sequence Read Archive (use search term “WGS of H5N1”).
Testing Resources
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