Cat Vaccination Schedule and Welfare

Core vaccinations protect cats from painful and often fatal diseases — understanding the welfare case for vaccination helps owners make informed preventive health decisions.

Key Facts

Core cat vaccines protect against feline herpesvirus, calicivirus, panleukopenia, and (where relevant) rabies.
Feline panleukopenia is a highly contagious disease with mortality rates up to 90% in unvaccinated kittens.
Feline upper respiratory infections cause chronic nasal discharge, painful eye ulcers, and oral ulcers in unvaccinated or poorly immune cats.
Vaccination site sarcomas — rare tumours at injection sites — affect an estimated 1 in 10,000-30,000 cats, a known risk managed through injection site protocols.
Indoor-only cats remain at risk from airborne pathogens and should maintain core vaccination schedules.

Welfare Considerations

Vaccination is one of the most welfare-positive interventions available to cat owners. The diseases prevented — panleukopenia, herpesvirus, calicivirus — cause serious, painful, and often fatal illness. The welfare cost of vaccination (brief injection discomfort) is trivially small compared to the welfare cost of the diseases it prevents. Current evidence supports moving from annual to triennial boosters for most core vaccines, but vaccination should not be abandoned entirely based on concerns about vaccine sarcoma risk, which is real but rare.

What You Can Do

Maintain your cat's core vaccination schedule in consultation with your veterinarian.
Discuss titer testing as an alternative to automatic annual boosters for established adult cats.
Ensure kittens receive their primary vaccination course starting at 8-9 weeks of age.
Monitor vaccination sites for unusual lumps and report any that persist beyond 4 weeks to your vet.