Comirnaty™ (Pfizer/BioNTech) is a vaccine that protects against COVID-19 disease caused by the SARS-CoV-2 virus.

How Comirnaty is made and what it contains

On this page you will find:

  • What type of vaccine the Comirnaty vaccine is
  • How mRNA vaccine technology works
  • How the vaccine is made
  • What the vaccine contains

Visit page: How Comirnaty is made and what it contains.

How the vaccine works and the protection it provides

On this page you will find:

  • How mRNA vaccines, like Comirnaty, work
  • How protective is this vaccine?

Visit page: How the vaccine works and the protection it provides.



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  • Thompson M, Burgess J, Naleway A, et al. Interim Estimates of Vaccine Effectiveness of BNT162b2 and mRNA-1273 COVID-19 Vaccines in Preventing SARS-CoV-2 Infection Among Health Care Personnel, First Responders, and Other Essential and Frontline Workers — Eight U.S. Locations, December 2020–March 2021. MMWR Morb Mortal Wkly Rep, 2021.
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  • Comirnaty data sheet
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