Most babies don’t have any side effects, but in some cases there may be a reaction at the place where the injection was given. Reactions include:
These usually only last a couple of days and you don’t need to worry or do anything about them.
After vaccination, young children may sometimes become unsettled for a day or two and may develop a fever. Older children may also have a fever, tiredness, muscle aches, headache or loss of appetite for a day or two.
For more information, see our guide: What to expect after vaccinations