Simplified Stages of Feline Herpesvirus (FeHV-1)

1. Incubation (2–6 days)
   Cat is infected but shows no symptoms, already contagious.
2. Acute infection (1–2 weeks)
   Obvious sickness: sneezing, runny eyes/nose, fever, eye ulcers. Highly contagious.
3. Lifelong latency
   Symptoms fade, but virus hides permanently in nerve cells. Cat looks healthy.
4. Reactivation (flare-ups)
   Stress weakens immunity; virus reactivates. Mild cold/eye symptoms return, cat becomes contagious again.

Long-term after repeated flares

Permanent nasal or eye damage (chronic runny nose, recurring eye pain).

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