Active immunisation of cats aged 8 weeks and older: against feline viral rhinotracheitis to reduce clinical signs; against calicivirus infection to reduce clinical signs and excretion; against Chlamydophila felis infection to reduce clinical signs. Onsets of immunity have been demonstrated 1 week after primary vaccination course for rhinotracheitis, calicivirus and Chlamydophila felis components. The duration of immunity is 1 year after the last (re-)vaccination.