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Livestock and Poultry Disease

Last Modified: November 15, 2024

We protect against diseases that could harm the health, quality, or marketability of our Nation's agricultural animals. With a vast network of partners, our Veterinary Services team helps U.S. producers prevent, control, and when possible, eliminate these diseases from our country.

APHIS also conducts surveillance and research on diseases and pathogens of concern in wildlife. Visit our National Wildlife Disease Program and National Wildlife Research Center to learn more.

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A field of brown and white cows stand looking at the viewer.

cervids in a farm enclosure

A brown horse wearing a bridle stands behind a fence and looks at the viewer.

A brown goat and a white sheep stand together and look at the viewer.

pig in an enclosure

Browse by animal disease (A-Z):

Animal Disease Services and Activities

Latest Updates

10/30/24

Federal and State Veterinary Agencies Share Update on HPAI Detections in Oregon Backyard Farm, Including First H5N1 Detections in Swine

8/28/24

CVB Notice 24-13: Field Studies with Nonviable, Non-replicating Veterinary Vaccines Targeting Highly Pathogenic Avian Influenza in Livestock

7/29/24

Cow “Challenge” Study Should Help Turn Tables on H5N1 in Dairy Herds

6/27/24

USDA to Begin Accepting Applications for Expanded Emergency Livestock Assistance Program to Help Dairy Producers Offset Milk Loss Due to H5N1

5/23/24

USDA Expands Support for Producers to Stop the Spread of H5N1 in Dairy Cattle