Equine Herpesvirus-1 Neurologic

Regional Municipality of Waterloo, Ontario

October 30, 2025

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1
Confirmed Cases
0
Suspected Cases
0
Exposed
0
Euthanized

Alert Details

Facility Type
Boarding Facility
Quarantine Status
Voluntary Quarantine
Data Source
OMAFA

Location

Affected Horse Details

Horse 1

Age
17
Gender
Mare
Breed
Thoroughbred (TB)
Status
Affected And Alive
Clinical Signs: On October 28, this mare was examined by a veterinarian for limb edema ("stocked up" ) and was walking stiffly. This progressed to difficulty urinating and ataxia within hours. She was referred to an equine hospital where she was diagnosed with EHV-1 neurologic disease (equine herpes myeloencephalopathy).