Vaccine Ingredients

The ingredients found in vaccines are safe and play an important role in ensuring the effectiveness of the vaccine against disease. The main ingredients of vaccines include dead or weakened viruses or bacteria. Vaccines can also contain adjuvants, additives and preservatives to help the body elicit a better response to vaccines and to help maintain the quality and effectiveness of the vaccine.

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Last Reviewed: January 26, 2024

Background Knowledge5
Implementation Tool8
Evidence1

Vaccine Ingredients

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The Canadian Vaccination Evidence Resource and Exchange Centre (CANVax)

Vaccine Ingredients

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The Canadian Vaccination Evidence Resource and Exchange Centre (CANVax)