Arizona EHV-1/EHM Cases Triggered a 2026 State Response

Published: September 13, 2026  ·  Status: Recent animal-health event

Arizona’s Department of Agriculture reported epidemiologically linked horses with acute neurologic signs in January 2026 that were confirmed with the neuropathogenic EHV-1 variant. The affected horses were euthanized and the state monitored associated exposure risks.

What changed

EHV events are particularly disruptive for boarding barns because they can lead to isolation, canceled travel, altered event schedules, and heightened client concern even when most horses remain healthy.

Why equine operations should care

The core operational need is fast access to accurate horse location, contact, and travel records.

What operators should do now

• Keep daily observation and temperature procedures available for exposed horses.
• Use dedicated equipment for isolated horses.
• Record recent event and travel history at intake.
• Follow Arizona State Veterinarian updates when restrictions change.

Keep written barn procedures, horse records, transport documents, and client communications aligned with the rules that actually apply to your operation. For related documentation, review the horse boarding contracts guide, Barn Setup, and the MyStableForms state package library.

This article provides general educational information and is not legal, veterinary, tax, transportation, or regulatory advice. Requirements and bill status can change.