Florida animal health authorities placed horses at Gulfstream Park under quarantine on Nov. 9 after one horse died of clinical signs related to equine herpesvirus-1 (EHV-1). Gulfstream is a Thoroughbred racetrack and casino located in Broward County.

On Nov. 8, a private veterinarian reported that a horse had exhibited neurologic signs at Gulfstream. The horse became neurologic on Nov. 6 and died of natural causes later that day, subsequently testing positive for a wild-type strain of EHV-1.

No other horses at Gulfstream have presented with clinical signs consistent with EHV-1 infection, according to a statement released by the Florida Department of Agriculture and Consumer Services Division of Animal Industry (Florida DAI).

Florida DAI is continuing its disease investigation and requiring enhanced biosecurity measures for all barns on the premises. Additionally, animal health authorities are requiring monitoring of all horses on the facility for neurologic signs. Resident horses must have their temperatures taken twice daily, and any horse with a temperature greater than 101.5$deg;F is to be tested for EHV-1