Feline herpesvirus type 1 (FHV-1) is a common viral infection that affects domestic cats. It primarily causes respiratory issues, such as sneezing, nasal discharge, and conjunctivitis. The virus is highly contagious and can spread through direct contact with an infected cat or contaminated surfaces. Once a cat is infected, the virus can remain dormant in the body and may reactivate during times of stress or illness. Vaccination is available to help prevent FHV-1, but it does not guarantee complete immunity. Regular veterinary check-ups are essential for managing the health of cats at risk of this virus.