Outbreaks | Equine Disease Communication Center

Updates on current disease outbreaks are listed here as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received.

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Equine Herpesvirus- Respiratory

Maryland, United States

Alert ID: 791

January 23, 2018

Source: Maryland Department of Agriculture

One horse previously housed in barn 20 at Laurel Park Racetrack has tested positive on nasal swab for EHV-1 wild type. The horse had recently been discharged from New Bolton Center in Kennett Square, PA prior to a quarantine being put in place after an EHM case last week. The horse tested negative for EHV-1 on whole blood and is clinically normal but was removed from barn 20 and placed in strict isolation off the premises. Barn 20 is under an Investigational Hold Order for now. The horse will be retested on Tuesday January 22, 2018 to determine how long Barn 20 will be kept under the Investigational Hold Order. Currently, all five Maryland quarantined equine premises exposed to EHV-1 that are being monitored with twice daily body temperatures and enhanced biosecurity are clinically normal. For precautionary measures, shipping restrictions and racing other than Barn 20 is being determined by the various race track officials.

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