CPHA Canvax

"The Pfizer-BioNTech vaccine, currently authorized for persons aged ≥5 years, provides a high level of protection against severe COVID-19 in persons aged 12–18 years. Vaccine effectiveness against multisystem inflammatory syndrome in children (MIS-C), which can occur 2–6 weeks after SARS-CoV-2 infection, has remained uncharacterized. 

Estimated effectiveness of 2 doses of Pfizer-BioNTech vaccine against MIS-C was 91% (95% CI = 78%–97%). Among critically ill MIS-C case-patients requiring life support, all were unvaccinated. 

Receipt of 2 doses of Pfizer-BioNTech vaccine is highly effective in preventing MIS-C in persons aged 12–18 years. These findings further reinforce the COVID-19 vaccination recommendation for eligible children." - Effectiveness of BNT162b2 (Pfizer-BioNTech) mRNA Vaccination Against Multisystem Inflammatory Syndrome in Children Among Persons Aged 12–18 Years — United States, July–December 2021

Additional Authors: Julie A. Boom, Leila C. Sahni, Satoshi Kamidani, Keiko M. Tarquinio, Aline B. Maddux, Sabrina M. Heidemann, Samina S. Bhumbra, Katherine E. Bline, Ryan A. Nofziger, Charlotte V. Hobbs, Tamara T. Bradford, Natalie Z. Cvijanovich, Katherine Irby, Elizabeth H. Mack, Melissa L. Cullimore, Pia S. Pannaraj, Michele Kong, Tracie C. Walker, Shira J. Gertz, Kelly N. Michelson, Melissa A. Cameron,Kathleen Chiotos, Mia Maamari, Jennifer E. Schuster, Amber O. Orzel, Manish M. Patel, Angela P. Campbell, Adrienne G. Randolph

Rating See Comments Ratings


Vaccine Safety and Development,Research and Development,Vaccine Effectiveness and Efficacy,Monitoring and Surveillance,Outbreaks and Pandemics,COVID-19,Specific Populations,Children,Adolescents Vaccine Safety and Development
Research and Development
Vaccine Effectiveness and Efficacy
Monitoring and Surveillance
Outbreaks and Pandemics
Specific Populations


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