EHV-1 Positive Forces Quarantine at Los Alamitos

A pony used to pony Quarter Horses was euthanized on February 18.

A barn at Los Alamitos Racecourse has been quarantined.

A pony based at Los Alamitos Racecourse was euthanized and later tested positive for the "wild-type" strain of equine herpesvirus type 1, which forced a barn at the track to go through quarantine procedures, reported on Thursday.

California Horse Racing Board equine medical director Rick Arthur confirmed the case of EHV-1 at Los Alamitos and provided additional details.

"The pony was used to pony (Quarter Horses) at Los Alamitos during the races. He last worked (February 11)," Arthur said of the deceased horse, who was euthanized February 18. "The barn where the horse was housed is under quarantine, and the six (Quarter Horses) he ponied during the races going back to (February 7) are being closely monitored."

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