26/04/2026
Feline calicivirus infection (FCV) is a common and highly contagious viral disease of cats, mainly affecting the respiratory system, mouth, and sometimes joints.
Causative Agent
•Caused by Feline calicivirus (FCV), a non-enveloped RNA virus.
Transmission
•Spread through:
•Direct contact (saliva, nasal discharge, eye secretions)
•Contaminated objects (food bowls, bedding, hands)
•Survives in the environment for several days.
Clinical Signs
•Sneezing and nasal discharge
•Oral ulcers (tongue, gums, lips)
•Fever
•Conjunctivitis
•Drooling
•Loss of appetite
•Lameness (limping syndrome in some strains)
•Severe cases: pneumonia or systemic infection
Diagnosis
•Based on clinical signs
•PCR test or virus isolation (confirmatory)
Treatment
•(No specific antiviral cure – supportive care)
•Fluids (to prevent dehydration)
•Antibiotics (to control secondary bacterial infections)
•Pain relief (for oral ulcers)
•Nutritional support
•Cleaning nasal/ocular discharge
Prevention
•Vaccination (core vaccine: part of FVRCP)
•Good hygiene and isolation of infected cat