Results of testing for equine herpesvirus-1 (EHV-1) on a horse in one of the quarantined barns at Calder Race Course came back negative the morning of Dec. 5. This allowed for the quarantine on that barn to be lifted and, thus, the activity of all the horses in that barn, including racing, is now unrestricted.

Three barns at Calder remain under quarantine conditions implemented Nov. 30 after a horse in one of the barns was diagnosed with the contagious disease. The fourth barn had been placed under quarantine Dec. 3 while the sample on a horse that exhibited clinical signs was sent to the University of Kentucky College of Agriculture's Livestock Disease Diagnostic Center for testing.

Precautionary operational procedures, including biosecurity measures, continue at Calder to reduce the risk of further contamination. The temperatures of horses in the quarantined barns are taken twice daily, and horses exhibiting a fever over 102 degrees, nasal discharge, or chronic cough are immediately tested. There have been no other horses demonstrating clinical signs thus far