Highly Pathogenic Avian Influenza (HPAI) Detections in Livestock

Last Modified: April 27, 2024

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 an illness among dairy cows.

As we learn more about this evolving situation, APHIS will continue to provide 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 at the links below.

Clarification Regarding Movement of Cattle Through Markets or Auctions to Slaughter, Under the April 24 Federal Order

Issued April 27, 2024

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USDA APHIS continues to receive questions related to the movement of lactating dairy cattle to sale barns and auction markets under the Federal Order and associated guidance, effective on April 29.

This message is to clarify that the Federal Order does not apply to the intrastate movement of a lactating dairy cow to a sale barn. Subsequent interstate movement for a lactating dairy cow from a sale barn directly to a slaughter facility requires only a Certificate of Veterinary Inspection (CVI) stating that the animal is clinically healthy; no testing is necessary.

This clarifies the requirements for states where direct to slaughter movements are limited but cattle movements flow through sale barns and auctions for consolidation and movement as a "lot" to slaughter out of state. We are announcing this clarification over the weekend to ensure small farms have the guidance necessary to continue to move cull cattle and limit animal welfare issues.

Confirmed Cases of HPAI in Domestic Livestock

*Data updated weekdays by 4 pm ET.

Map showing HPAI in Domestic Livestock - Affected States

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Information for Producers and Veterinarians

(PDF, 290.63 KB)

For State Animal Health Officials, Accredited Veterinarians and Producers

(PDF, 192.88 KB)

For Workers

Biosecurity Resources

USDA’s Defend the Flock program offers free tools and resources to help everyone who works with or handles poultry follow proper biosecurity practices.

(PDF, 286.4 KB)

Download the Influenza and Biosecurity: Not Just for the Birds factsheet.

(PDF, 462.94 KB)

Information on loans which can assist livestock producers with implementation of biosecurity measures on their operations.

Centers for Disease Control and Prevention Resources

Food and Drug Administration Resources

Questions and answers regarding milk safety during highly pathogenic avian influenza (HPAI) outbreaks.