Feline Herpesvirus type 1 (FHV-1) is a common viral infection in cats, primarily affecting the upper respiratory system. It is highly contagious and spreads through direct contact with infected cats or contaminated surfaces. Symptoms often include sneezing, nasal discharge, and eye problems, such as conjunctivitis. Once infected, cats may carry the virus for life, experiencing periodic flare-ups, especially during times of stress. Vaccination can help reduce the severity of symptoms and the risk of infection. Regular veterinary check-ups are essential for managing the health of cats affected by FHV-1.