Cat vaccinations are one of the most cost-effective investments you can make in your cat's health. Yet many Victorian cat owners are unsure which vaccines their cat actually needs, how often to boost them, or whether their indoor cat really requires protection. This guide answers those questions clearly — so you can make informed decisions for your cat.
Core vs. Non-Core Vaccines: What's the Difference?
In Australia, cat vaccines are classified as either core (recommended for all cats regardless of lifestyle) or non-core (recommended based on individual risk factors). Understanding this distinction helps you have a more informed conversation with your vet.
- Core vaccines protect against the three most serious and widespread feline diseases: feline herpesvirus (cat flu), feline calicivirus (cat flu), and feline panleukopenia (feline parvovirus). These are combined in the F3 vaccine.
- Non-core vaccines include feline immunodeficiency virus (FIV) and feline leukaemia virus (FeLV). These are recommended for outdoor cats or cats with exposure to unknown cats.
- Feline chlamydiosis vaccine is sometimes included in combination products (F4 or F5) and may be recommended for cats in multi-cat households.
The Standard Cat Vaccination Schedule in Victoria
The Australian Veterinary Association recommends the following schedule for core cat vaccinations:
- 16–8 weeks: First F3 vaccination — usually given by the breeder or rescue organisation
- 210–12 weeks: Second F3 vaccination
- 314–16 weeks: Third F3 vaccination — the final kitten booster
- 412 months: First adult booster
- 5Every 1–3 years: Ongoing boosters — the interval depends on your cat's lifestyle and the specific vaccine used
Tip: If you've adopted an adult cat with unknown vaccination history, we recommend starting a full course of two vaccinations 3–4 weeks apart, followed by a booster at 12 months.
Do Indoor Cats Need Vaccinations?
This is one of the most common questions we receive — and the answer is yes, though the frequency may differ. Feline herpesvirus and calicivirus can be carried in on your hands, clothing, or shoes. Panleukopenia (feline parvovirus) is extremely hardy and can survive in the environment for years — meaning even a cat that never goes outside can be exposed.
For strictly indoor cats with no exposure to other cats, we may recommend extending the booster interval to every 3 years after the initial course is complete. However, this should be a conversation with your vet based on your cat's specific circumstances — not a blanket assumption that indoor cats don't need protection.
FIV Vaccination: Is It Right for My Cat?
Feline immunodeficiency virus (FIV) is transmitted primarily through bite wounds — meaning outdoor cats that fight with other cats are at significant risk. FIV is incurable and progressively damages the immune system, making cats vulnerable to infections they would otherwise fight off easily.
The FIV vaccine is available in Australia and is strongly recommended for outdoor cats, particularly entire males who are more likely to roam and fight. There is an important consideration: vaccinated cats will test positive on standard FIV antibody tests, which can cause confusion if your cat is ever lost and tested at a shelter. We recommend keeping a record of your cat's vaccination history and ensuring they're microchipped with up-to-date contact details.
What Happens at a Vaccination Appointment?
A vaccination appointment is much more than just a needle. At Mulgrave Vet, every vaccination visit includes a full physical examination — checking your cat's weight, teeth, eyes, ears, heart, and abdomen. This annual or biannual health check is often where we detect early signs of conditions like dental disease, hyperthyroidism, or kidney disease before they become serious problems.
- Full nose-to-tail physical examination
- Weight check and body condition scoring
- Dental assessment
- Discussion of diet, parasite control, and any behavioural concerns
- Vaccination certificate updated for your records
- Reminder set for next due date
Are There Side Effects?
Most cats tolerate vaccinations very well. Mild lethargy and a slight tenderness at the injection site for 24–48 hours are normal. Serious reactions are rare but can include facial swelling, vomiting, or difficulty breathing — if you notice any of these within an hour of vaccination, contact us immediately.
A small, firm lump at the injection site is normal and usually resolves within a few weeks. However, if a lump persists beyond 4 weeks, grows larger, or becomes painful, please bring your cat in for assessment — this is rare but should always be checked.
Due for a vaccination? Book your cat's annual health check and vaccination today — it's the best 30 minutes you can invest in their long-term health.