Outbreaks | Equine Disease Communication Center

Updates on current disease outbreaks are listed here as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received.

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Alert ID: 4179

January 16, 2025

Source: USDA-APHIS

Stakeholder Update: Resumption of equine imports from Mexico after New World Screwworm detection

Effective January 21, 2025, the Animal and Plant Health Inspection Service (APHIS) will again permit the importation of equines from Mexico with additional mitigations to guard against introduction of New World Screwworm (NWS). APHIS temporarily suspended livestock imports from Mexico after that country detected NWS on November 22, 2024. NWS (Cochliomyia hominivorax) is a devastating pest that can cause serious, often deadly damage to the affected animal.

APHIS and Mexico’s National Service for Health, Safety, and Food Quality (SENASICA) have now developed an import protocol that details a stepwise NWS pre-clearance inspection and treatment plan based on APHIS regulations for importation of equines from NWS-affected regions. Equines will also undergo screwworm examinations during the required import quarantine. The protocol and associated health certification documents are available on the APHIS website.

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