The Indiana State Board of Animal Health (BOAH) has lifted the quarantine on a Lake County, Ind., horse boarding facility put into place last month after a horse was confirmed positive with equine herpesvirus-1 (EHV-1). Forty-five horses stabled at the facility have been determined to be free of the disease after being closely monitored for 30 days under the direction of a BOAH veterinarian.

The affected horse was humanely euthanized in May after showing neurologic signs before he was confirmed for the virus.

The BOAH advises horse owners to talk with a veterinarian about including the EHV vaccine in an annual vaccination regimen. When traveling to exhibitions and/or out-of-state, horse owners are advised to contact the state of destination to determine if additional horse health requirements must be met due to an EHV-1 case identified in Indiana.

Although it’s not transmissible to humans, EHV-1 is highly contagious among horses and camelids, and it is generally passed from horse to horse via aerosol transmission (when affected animals sneeze/cough) and contact with nasal secretions. The disease can cause a variety of ailments in equines, including rhinopneumonitis (a respiratory disease usually found in young horses), abortion in broodmares, and myeloencephalopathy (EHM, the neurologic form)