About this section

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In this section, you will find trustworthy, science-based information about the safety of vaccines, including information about:

  • Vaccine side effects.
  • Vaccine ingredients.
  • How vaccines are tested, approved, and monitored.
  • How Canada's vaccine safety system ensures vaccines are as safe as possible. 

You will also find answers to frequently asked questions about vaccine safety. 



    Date last reviewed: 
    Thursday, Mar 18, 2021