Equine Herpesvirus type 1, or EHV-1, is a virus that primarily affects horses. It can cause respiratory illness, neurological disorders, and reproductive issues in pregnant mares. EHV-1 is highly contagious and can spread through direct contact, contaminated equipment, or even airborne particles. Infected horses may show symptoms such as fever, nasal discharge, and lethargy. In severe cases, EHV-1 can lead to neurological problems, including loss of coordination and paralysis. Vaccination and good management practices are essential to control outbreaks and protect horse populations from this virus.