COVID-19 mRNA vaccines

Two of the vaccines approved for use in Canada are messenger RNA vaccines (called mRNA vaccines): Pfizer and Moderna. mRNA vaccines are a new type of vaccine. They don't use live virus to trigger an immune response.

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Additional Info

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Last Updated April 17, 2026, 21:38 (UTC)
Created April 17, 2026, 21:38 (UTC)
criticality_level []
geographic_scope []
open_canada_collection publication
open_canada_date_published 2021-06-07 00:00:00
open_canada_keywords {"fr": ["COVID-19", "ARNm", "vaccins à ARN messager", "ARN", "acide ribonucléique", "Pfizer", "Moderna", "réponse immunitaire", "sécurité et efficacité des vaccins"], "en": ["COVID-19", "mRNA", "messenger RNA vaccines", "RNA", "ribonucleic acid", "Pfizer", "Moderna", "immune response", "vaccines safety and effectiveness"]}
open_canada_subject ["health_and_safety"]
sensitivity_level unrestricted
title_fr Vaccins à ARNm contre la COVID-19
update_frequency as_needed