Estimated Protection of Prior SARS-CoV-2 Infection Against Reinfection With the Omicron Variant Among Messenger RNA-Vaccinated and Nonvaccinated Individuals in Quebec, Canada

CONCLUSIONS AND RELEVANCE: The findings of this study suggest that vaccination with 2 or 3 mRNA vaccine doses among individuals with prior heterologous SARS-CoV-2 infection provided the greatest protection against Omicron-associated hospitalization. In the context of program goals to prevent severe outcomes and preserve health care system capacity, a third mRNA vaccine dose may add limited protection in twice-vaccinated individuals with prior SARS-CoV-2 infection.
Auteurs (Zotero)
Carazo, Sara; Skowronski, Danuta M.; Brisson, Marc; Sauvageau, Chantal; Brousseau, Nicholas; Gilca, Rodica; Ouakki, Manale; Barkati, Sapha; Fafard, Judith; Talbot, Denis; Gilca, Vladimir; Deceuninck, Geneviève; Garenc, Christophe; Carignan, Alex; Wals, Philippe De; Serres, Gaston De
Date de publication (Zotero)
octobre, 2022
URL (Zotero)