Vaccination helps protect cats from serious infectious diseases. Kittens need a series of vaccinations starting from 6 to 8 weeks of age, then ongoing boosters are tailored to your cat’s lifestyle and risk.
In Australia, the core feline vaccination is commonly referred to as F3. It helps protect against:
Most kittens follow this approach:
If your kitten is at higher risk (for example coming from a shelter, foster care, a large multi-cat household, or has frequent contact with unfamiliar cats), your vet may recommend:
We recommend a booster at about 6 months of age to reduce the chance of a window of susceptibility in kittens that did not mount a strong immune response earlier.
After the kitten series (and any recommended 6-month booster), the booster interval is based on risk.
A common approach is:
A common approach is:
Theses appointments give us an opportunity to check:
Even if your kitten's vaccination interval is not yearly, regular health checks remain important.
Most kittens follow this approach:
Yes. Core vaccination is recommended because infections can still enter the household indirectly (for example on clothing, shoes, or via visitors and other animals).
Kittens start at 6 to 8 weeks of age.
Kittens should receive a vaccination every 2 to 4 weeks until they are 16 weeks of age or older.
In higher-risk situations, continuing until 20 weeks (sometimes at 2 to 3-week intervals) can improve the chance of protection in kittens with higher exposure risk or variable immune responses.
A booster at about 6 months will reduce the chance of a window of susceptibility in kittens that did not respond strongly earlier in the kitten series.
Many kittens have no side effects. Some may be tired or have mild soreness for 24 to 48 hours. Serious reactions are uncommon, but if your cat collapses, has difficulty breathing, develops facial swelling, or is rapidly worsening, seek urgent veterinary care.
Adult cat vaccination is best planned around your cat’s lifestyle and exposure risk, using core vaccines to protect against serious disease. Many low-risk cats can be revaccinated at longer intervals, while higher-risk cats may benefit from more frequent vaccination and careful timing before high-exposure events such as boarding.
Your vet will recommend a schedule based on factors such as:
Low-risk cats are typically strictly indoor and do not have contact with cats outside the household. A common approach is:
Higher-risk cats include those that:
A common approach is:
If your cat’s vaccination history is uncertain, your vet may recommend restarting a core course or using an appropriate catch-up plan. There is generally no disadvantage to revaccinating when history is unknown.
For some cats, antibody testing (a blood test) can help assess protection against panleukopenia. It does not reliably replace vaccination decisions for all components or all situations, and it is not necessary for most cats, but it can be discussed for selected cases.
Even if your cat’s boosters are not due every year, regular health checks remain important. These visits provide an opportunity to discuss:
Yes, but the interval may be longer for low-risk cats. A common approach is revaccination at 3 years of age and then no more frequently than every 3 years for strictly indoor cats with no contact with other cats.
Cats that board are generally considered higher risk. Annual revaccination may be recommended, often timed 1 to 2 weeks before boarding. Always check the boarding facility’s requirements as they may have specific rules.
Risk varies. Cats with frequent exposure to other cats or high-stress, high-contact environments are more likely to encounter respiratory viruses, and more frequent vaccination may be advised.
If the history is uncertain, your vet may recommend a catch-up plan. In most cases, revaccinating when records are missing is safe and practical.
In selected cases, antibody testing may help assess protection against panleukopenia. It does not replace vaccination decisions in all situations, particularly where exposure risk is high.
Cats rarely experience serious vaccine problems. Some may be mildly tired or sore for 24 to 48 hours. Serious reactions are uncommon, but urgent signs include collapse, breathing difficulty, facial swelling, or persistent vomiting.
Often, yes, but the plan should be individualised. Your vet will balance exposure risk with your cat’s overall health and may tailor vaccine choices and timing.
