The Arizona Department of Agriculture announced on Jan. 28 that it has quarantined horses at Turf Paradise racetrack, in Phoenix, after determining that three horses could have been exposed to equine herpesvirus-1 (EHV-1).

The quarantine requires all horses at the track to stay in place and for no horses to come onto the property for at least 21 days.

The quarantine follows three horses coming into the state from Dona Ana County, New Mexico, where several horses have been diagnosed with EHV-1. The New Mexico Livestock Board issued a quarantine for several locations, but the horses at Turf Paradise left before the restrictions were in place.

Turf Paradise immediately isolated the three horses following that disease report and monitored them for clinical signs. The track is also requiring strict biosecurity measures for all horse owners and personnel at the track