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EHV-1 quarantines come to a close

October 6, 2011

Quarantines have been lifted on properties in Tuolumne and San Joaquin County, in California, following an outbreak of the neurological strain of equine herpesvirus-1 (EHV-1).

The California Department of Food and Agriculture announced the lifting of the quarantines on Wednesday.

Eight horses were confirmed positive for the neuropathogenic strain of EHV-1 on the index Tuolumne County property.

It was placed under quarantined on September 12 and released on Wednesday.

Six horses showed neurologic signs, while two presented with a fever only. One horse had to be euthanised.

Two additional confirmed positive horses were located on a San Joaquin property, which was listed as a secondary exposed property.

Both horses were exposed to the virus while visiting the Tuolumne county premises.

Meanwhile, the Equine and Large Animal Hospitals at the University of Tennessee's Veterinary Medical Center lifted all restrictions on September 30.

They were put in place after a horse brought to the facility subsequently tested positive for EHV-1. The horse was euthanised within hours of arrival.

The horse had come from the Dixie Stampede, in Pigeon Forge, where five more cases were confirmed.

Two paints, two quarter horses and a percheron were treated, but their symptoms were understood to be mild.

The show has remained open while the horses were being monitored.

Horse restrictions there were expected to be lifted this week, according to reports.



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