Extended dose intervals for COVID-19 vaccines to optimize early vaccine rollout and population protection in Canada in the context of limited vaccine supply

Contains NACI's independent advice and recommendations, which are based upon the best current available scientific knowledge. The objective is to provide guidance for the equitable, ethical, and efficient allocation of authorized COVID-19 vaccines in the context of staggered arrival of vaccine supply.

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Last Updated April 17, 2026, 20:48 (UTC)
Created April 17, 2026, 20:48 (UTC)
criticality_level []
geographic_scope []
open_canada_collection publication
open_canada_date_published 2021-04-14 00:00:00
open_canada_keywords {"fr": ["équité", "covid-19", "vaccinationprécoces", "ARNm", "Acide ribonucléique messager", "ASPC", "Agence de la santé publique du Canada", "C.-B.", "Colombie-Britannique", "CCNI", "Comité consultatif national de l'immunisation", "EEFA", "Éthique", "faisabilité et acceptabilité", "ESLD", "Établissement de soins de longue durée", "IC", "Intervalle de confiance", "PCR", "Réaction de polymérisation en chaîne ; R.-U.", "Royaume-Uni", "TS", "Travailleur de la santé", "VE", "Efficacité vaccinale réelle", "vaccination précoces"], "en": ["Ethics", "equity", "feasibility", "covid-19", "vaccines", "vaccine rollout", "CI", "Confidence interval", "EEFA", "and acceptability", "HCW", "Health care worker", "LTCF", "Long-term care facility", "mRNA", "Messenger ribonucleic acid", "NACI", "National Advisory Committee on Immunization", "PCR", "Polymerase chain reaction", "PHAC", "Public Health Agency of Canada", "VE", "Vaccine effectiveness", "British Columbia (BC)"]}
open_canada_subject ["health_and_safety"]
sensitivity_level unrestricted
title_fr Allongement des intervalles entre les doses des vaccins contre la COVID-19 pour optimiser les campagnes de vaccination précoces et la protection des populations au Canada dans le contexte d’un approvisionnement limité en vaccins
update_frequency unknown