A second horse was diagnosed with equine herpes virus-type 1 on March 30 after being released from the Cornell University Equine Hospital in Ithaca, N.Y. The gelding was released March 22 and started showing signs of neurological distress after arriving at his home farm. He is now recovering.

The first horse with a confirmed case of EHV-1 died at Cornell Equine Hospital on March 20. Sixty-nine horses at Cornell were potentially exposed to the virus, and the hospital is now under voluntary quarantine.

“While [this is] a common virus in horses, we are taking this situation very seriously given the large number of horses that have potentially been exposed to a highly communicable and sometimes fatal disease,” said New York State Veterinarian Dr. David Smith in a press release. “To date, no other horses have showed signs, nor tested positive for the virus. However, this serves as an excellent reminder to horse owners that they should always be cautious of introducing new horses with an unknown disease status.”