SNYDER COUNTY, Pa. — The Pennsylvania Department of Agriculture, Bureau of Animal Health placed a barn under quarantine after two horses tested positive for EHV-1.

According to the Equine Disease Communications Center, on Dec. 7, the Pennsylvania Veterinary Laboratory in Harrisburg, Pa. confirmed Equine Herpesvirus Myeloencephalopathy in a horse with hind limb ataxia tested positive for EHV-1 (G-strain).

As of Dec. 10, two horses were affected and both horses have been euthanized at the premises, a pleasure horse barn in Snyder County. Eight horses remain on the premises and are being monitored for clinical signs of EHV-1 infection and biosecurity precautions have been implemented to prevent the spread of the virus off of the premises.

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No additional clinical signs have been noted in the remaining horses.

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