The Equine Disease Communication Center posted the following update on the Fair Grounds Racetrack EHV-1 outbreak on Wednesday:
On January 23, all horses in isolation at the Fair Grounds racetrack were retested blood and nasal for EHV-1 after at least seven days of isolation. Five of 37 horses remained positive for EHV-1 non-neuropathogenic based only on nasal swab with 32 horses testing negative. Five horses that have completed quarantine were released. Trace-out horses from the receiving barn were released from restrictions following testing and or isolation. Scheduled retesting will continue on isolated horses until release requirements are fulfilled. No new symptomatic horses have been reported in any barns and increased monitoring and biosecurity remain in force.
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