How do vaccines affect immunity fact sheet

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Publication date: 
19 December 2017
Last updated: 
25 July 2018
Publication type: 
Fact Sheet
Intended audience: 
General public
Description: 

This fact sheet is about how vaccines affect immunity.

It provides information about:

  • how vaccines work
  • whether vaccines can overwhelm immune systems of a baby
  • why babies need vaccines
  • why developing natural immunity is not safe.