The official quarantines imposed by the Pennsylvania Department of Agriculture (PDA) on two barns at the University of Pennsylvania School of Veterinary Medicine’s New Bolton Center, in Kennett Square, have been lifted.

A self-imposed quarantine, approved by the PDA, remains in effect on three horses that previously tested positive for equine herpesvirus-1 (EHV-1). These horses have remained stalled in an on-site isolation facility with dedicated staff that are entirely separate from personnel handling other horses. Quarantine revocation testing for these three began on Feb. 7.

The New Bolton Center has resumed normal operations and is currently admitting all equine elective and emergency patients with minimal restrictions. Additionally, all elective and emergency camelid cases are being admitted.

On Tuesday, January 16, a horse that had been hospitalized for an unrelated medical issue developed signs compatible with equine herpes myeloencephalopathy and tested positive for EHV-1. An additional febrile horse housed in an adjacent barn, as well as a single asymptomatic horse housed in the same barn, also tested positive for EHV-1