Feline herpesvirus type 1 (FHV-1) establishes lifelong latent infection in most cats, causing recurrent welfare problems that require ongoing management.
Cats with recurrent herpesvirus flare-ups experience periodic eye pain, facial discomfort, and respiratory irritation throughout their lives. Each flare-up is triggered by stress, meaning poorly managed environments (conflict with other cats, household changes, veterinary visits) directly increase welfare burden for herpesvirus-affected cats. Corneal ulcers cause acute pain that significantly affects quality of life during active episodes. Management must address both acute treatment of flare-ups and chronic stress reduction to minimize their frequency.