The Australian Immunisation Schedule Explained

The Australian National Immunisation Program (NIP) provides free vaccines for all children from birth through to adolescence. It's one of the most comprehensive immunisation programs in the world, and keeping up with the schedule is one of the most important things you can do for your baby's health. Here's a straightforward guide to what's involved.

Why Vaccination Matters

Vaccines work by training your baby's immune system to recognise and fight specific infections before they encounter them in the real world. The diseases covered by the NIP — including whooping cough, measles, meningococcal disease, and rotavirus — can be serious or even life-threatening for young babies. Vaccination doesn't just protect your child; it also protects other babies and vulnerable people in your community who may not be able to be vaccinated themselves.

The Schedule: Birth to 4 Years

Here's an overview of when vaccines are due under the current NIP schedule:

At Birth

Your baby will receive their first dose of the Hepatitis B vaccine, usually given in hospital before discharge. Hepatitis B can cause serious liver disease, and early vaccination provides protection from the very beginning.

6 Weeks

This is the first big round of vaccinations and usually coincides with your baby's 6-week health check. Your baby will receive vaccines for:

• Diphtheria, tetanus, and whooping cough (pertussis)
• Hepatitis B (second dose)
• Polio
• Haemophilus influenzae type b (Hib)
• Rotavirus (oral drops)
• Pneumococcal

These are typically given as two injections plus oral drops — fewer needles than the list suggests, thanks to combination vaccines.

4 Months

The second round includes another dose of the 6-week vaccines (diphtheria, tetanus, pertussis, hepatitis B, polio, Hib) plus the second doses of rotavirus and pneumococcal.

6 Months

The third round of the primary course. Your baby receives another dose of the combination vaccine (diphtheria, tetanus, pertussis, hepatitis B, polio, Hib) plus the third rotavirus dose. From 6 months, babies are also eligible for the annual influenza (flu) vaccine, which is free for all children aged 6 months to under 5 years in Australia.

12 Months

At the one-year mark, the schedule includes:

• Measles, mumps, and rubella (MMR) — first dose
• Meningococcal ACWY
• Pneumococcal (booster)

The MMR vaccine is one of the most important in the schedule. Measles in particular is highly contagious and can cause serious complications in young children.

18 Months

Booster doses to strengthen protection:

• Haemophilus influenzae type b (Hib) — booster
• Measles, mumps, rubella, and varicella (MMRV) — this combination adds chickenpox protection
• Diphtheria, tetanus, and pertussis — booster

4 Years

The pre-school boosters, usually done before starting kindergarten:

• Diphtheria, tetanus, pertussis, and polio — booster

What About Catch-Up Vaccinations?

If your baby misses a scheduled vaccine — because they were unwell, or the timing just didn't work out — don't worry. Australia has a comprehensive catch-up program. Your GP or child health nurse can work out a catch-up schedule tailored to your child. The key is to get back on track as soon as possible rather than starting over.

How BubDaze Helps

Keeping track of which vaccines your baby has had — and which are coming up next — can be confusing, especially in the sleep-deprived early months. BubDaze includes the full NIP schedule built into the app, personalised to your baby's date of birth.

In the Health section, you'll see a clear timeline of upcoming vaccinations with due dates calculated automatically. When you attend a vaccination appointment, you can log it in the app with a single tap — recording the date, the vaccines given, and any notes about reactions. This creates a digital immunisation record that complements your physical health book and the Australian Immunisation Register (AIR).

If your baby is due for a vaccination, BubDaze can send you a reminder notification so nothing slips through the cracks. And when it's time for a GP visit, you can generate a health report that includes your baby's complete vaccination history alongside growth data and health events — everything your doctor needs in one place.

Where to Learn More

• Australian Government — Immunise Australia: The official NIP schedule and fact sheets are available at health.gov.au
• Your GP or child health nurse: They can answer specific questions about your baby's vaccination needs
• Pregnancy, Birth & Baby helpline: 1800 882 436
• National Centre for Immunisation Research and Surveillance (NCIRS): Evidence-based resources for parents and health professionals

Vaccination is one of the simplest, most effective ways to protect your baby. BubDaze makes it easy to stay on top of the schedule so you can focus on what matters — watching your little one grow.