The USDA’s Animal and Plant Health Inspection Service (AHPIS) has confirmed the first case of classical scrapie in the U.S. since 2021.
The virus was found in a sheep slaughtered facility in Oregon without an ear tag. USDA says the lack of an ear tag can make it difficult to detect where the disease originated. Classical scrapie is a fatal, degenerative disease that affects the nervous system in sheep and goats. APHIS has initiated an epidemiological investigation to determine the flock of origin.
The US was on track to meet the World Organization for Animal Health’s 7‑year benchmark to self‑declared scrapie freedom in January 2028. APHIS has now notified the organization of the confirmed detection.
APHIS says it does not expect the detection to have an impact on trade.
USDA encourages producers to reinforce key practices that have advanced scrapie eradication efforts nationwide:
- Strict compliance with ear tagging and traceability requirements to ensure exposed animals can be accurately tracked.
- Robust surveillance participation, including submission of clinical suspects and routine monitoring.
- Use of genetically resistant breeding stock, which significantly reduces disease susceptibility and depopulation needs.
- Continued partnership with APHIS and State officials to support investigation and long‑term freedom efforts.
More information about scrapie and APHIS’ eradication program is available at www.aphis.usda.gov.
