Your baby's first vaccinations: what to expect
Your baby’s immune system is still developing in their first year.
Vaccinations help protect your baby from serious illnesses when they are most vulnerable.
Why does my baby need vaccinations?
Your baby’s immune system is still developing, which means they are more likely to catch infections in their first year.
How do vaccines work?
Vaccines help your baby’s immune system learn how to recognise germs and make antibodies to fight them. This protection is built without your baby having to become ill first.
Why can’t babies just build immunity by catching illnesses?
Because babies’ immune systems are still immature, catching infections can make them very unwell. It is much safer for their immune system to learn how to fight diseases through vaccination rather than through infection.
How long does protection last?
Once your baby’s immune system has learned how to respond to a disease, the protection from vaccination can last for many years.
How will I know when my baby is due a vaccination?
When your child is due for their vaccinations, you will receive a letter inviting you to attend a clinic. This usually comes from your GP or health visiting team.