Two Confirmed Cases of Neurologic Equine Herpesvirus in New Jersey

Two horses on a premises in Morris County, New Jersey, tested positive for neurologic equine herpesvirus (also known as equine herpesvirus myeloencephalopathy or EHM).
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Two horses on a premises in Morris County, New Jersey, tested positive for neurologic equine herpesvirus (also known as equine herpesvirus myeloencephalopathy or EHM).

The New Jersey Department of Agriculture confirmed two cases of neurologic equine herpesvirus in Morris County. Neurologic equine herpesvirus is also known as equine herpesvirus myeloencephalopathy or EHM.

The first horse was a 17-year-old Quarter Horse gelding and the second horse was a 20-year-old Quarter Horse gelding. Both had onset of clinical signs on April 18.

The horses were administered prompt treatment and have improved clinically. 

There are other horses at the farm that might have been exposed to the positive horses. Immediate biosecurity measures are in effect at the premises and will be in place for the 21-day quarantine. 

Additionally, all the horses on the quarantined premises will be temperature checked twice daily to confirm that the virus is not spreading. The two infected horses are being isolated from the rest of the herd. 

The New Jersey Department of Agriculture is tracing and notifying the appropriate parties regarding recent horse movement.

Information for this report was provided by the Equine Disease Communication Center.

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