Why Vaccinations Matter

Vaccines train the immune system to recognise and fight specific diseases — without the child having to get sick first. Thanks to widespread vaccination programs, diseases that once killed or permanently disabled thousands of children every year are now rare or eliminated in many parts of the world. Staying up to date with the recommended schedule gives your child the best possible protection during their most vulnerable years.

How Vaccines Work

When a vaccine is given, it introduces a harmless piece of a pathogen (such as a protein, a weakened virus, or instructions for the body to make a protein) into the body. The immune system mounts a response, creating memory cells. If your child later encounters the real disease, those memory cells respond quickly — often preventing illness entirely or significantly reducing its severity.

The General Childhood Vaccination Schedule

Vaccination schedules vary by country, so always follow the specific program recommended by your national health authority. Generally speaking, most schedules include protection against the following diseases:

  • At birth: Hepatitis B (first dose)
  • 6–8 weeks: Diphtheria, tetanus, pertussis (whooping cough), polio, Haemophilus influenzae type b, hepatitis B, rotavirus, and pneumococcal disease
  • 4 months: Second doses of the above
  • 6 months: Third doses; some programs add flu vaccine here
  • 12–15 months: MMR (measles, mumps, rubella), chickenpox (varicella), meningococcal disease
  • 4–6 years: Booster doses for several of the above
  • 11–12 years: HPV vaccine, meningococcal booster, Tdap booster

Always consult your child's doctor or your national health department for the exact schedule in your country.

Common Questions Parents Ask

Are multiple vaccines at once safe?

Yes. Research consistently shows that giving several vaccines at one visit is safe. Children's immune systems are capable of handling multiple vaccines simultaneously — they encounter far more immune challenges in everyday environments. Combining vaccines also means fewer clinic visits and earlier protection.

What side effects should I expect?

Most side effects are mild and short-lived:

  • Soreness, redness, or swelling at the injection site
  • Low-grade fever (very common and not dangerous)
  • Fussiness or crying for a day or two
  • Drowsiness

Serious allergic reactions (anaphylaxis) are extremely rare and typically occur within 15 minutes of vaccination — which is why you're asked to wait at the clinic after the shot.

What if my child misses a scheduled vaccine?

Don't panic. Most vaccines can be caught up at a later date. Speak to your doctor or nurse about a catch-up schedule. The important thing is to get back on track as soon as possible.

How to Prepare Your Child for Vaccinations

  • Be honest and age-appropriate: "It will sting for a moment, and then it's over."
  • Bring a comfort item — a favourite toy or blanket.
  • Hold your child or breastfeed during the injection if possible — this reduces pain perception.
  • Praise bravery afterwards, regardless of whether they cried.

After the Vaccination

Give age-appropriate pain relief (such as paracetamol) if your child is clearly uncomfortable or feverish — but check dosage guidance with your pharmacist or doctor first. Keep an eye on the injection site for swelling, and contact your doctor if:

  • A fever exceeds 39°C (102°F) or lasts more than 48 hours
  • Your child seems unusually unwell
  • There is significant swelling beyond the injection area

The Bottom Line

Vaccines are among the safest and most rigorously tested medical interventions available. Staying on schedule protects your individual child and contributes to community immunity — protecting babies too young to be vaccinated and those who cannot receive vaccines for medical reasons. Your child's healthcare provider is always the best source of personalised advice.