We use cookies to make this site work. We'd also like to set optional cookies so we can understand how the site is used and improve it. We will not set optional cookies unless you accept them. You can change your choice at any time from the Cookie settings link in the footer.
Strictly necessary cookies
These cookies are required for the site to work. They store your cookie preferences and keep your session secure. They are exempt from consent under PECR Regulation 6(4) because they are essential to deliver the service you have requested.
Optional cookies
Optional cookies help us understand how the site is used and provide additional features such as analytics, accessibility tools and translation. We will only set them if you accept.
Child Immunisations
Childhood Immunisations
If a vaccine is given when a baby still has antibodies to the disease, the antibodies can stop the vaccine working. This is why routine childhood immunisations do not start until a baby is two months old, before the antibodies a baby gets from its mother have stopped working. This is also why it is important for parents to stick to the immunisation schedule, as a delay can leave a baby unprotected. A delay can increase the chance of adverse reactions to some vaccines, such as pertussis (whooping cough).
Vaccination Schedule From Jan 2026
Further reading
Vaccination - Tips for parents to consider before during and after your childs vaccination appointments
NHS Choices - Immunisation Information
The most comprehensive, up-to-date and accurate source of information on vaccines, disease and immunisation in the UK.
NHS Choices - Vaccines
These webpages has been put together to answer any questions you might have about MMR or MMRV - Click for further information.