EHV-1 Quarantine at Portland Meadows

Portland Meadows | The Stronach Group

Portland Meadows in Oregon is the latest Thoroughbred racetrack to have a quarantine imposed after a 7-year-old mare was diagnosed with the “wild” strain of equine herpesvirus type 1 (EHV-1).

The Oregon Department of Agriculture reported that the mare developed mild ataxia on Jan. 25, and while neither the neuropathogenic or wild type strains of EHV-1 were detected by blood testing, nasal swab samples confirmed the wild-type strain.

“Portland Meadows racetrack veterinary authorities have quarantined the index case and high-risk contacts in a barn separate from other horses,” the Equine Disease Communication Center reported Jan. 30. “Enhanced biosecurity measures have been implemented. The index case is stable and non-febrile. High risk contacts are being closely monitored. To date, there have been no additional sick animals reported.”

Earlier this month, EHV-1 quarantines were imposed and subsequently released at Belmont Park in New York and Laurel Park in Maryland.

 

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