A population-based assessment of myocarditis after messenger RNA COVID-19 booster vaccination among adult recipients

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dc.contributor.author
Naveed, Zaeema
Li, Julia
Naus, Monika
Velásquez García, Héctor Alexander
Wilton, James
Janjua, Naveed Z.
Canadian Immunization Research Network Provincial Collaborative Network investigators
dc.date.accessioned
2025-02-10T16:31:37Z
dc.date.available
2025-02-10T16:31:37Z
dc.date.issued
2023-06
dc.description.abstract - en
<p>Objectives<br> We aimed to estimate the rate of myocarditis after the messenger RNA (mRNA) COVID-19 booster vaccination by vaccine type, age, and sex.</p> <p>Methods<br> We used data from the British Columbia COVID-19 Cohort, a population-based cohort surveillance platform. The exposure was a booster dose of an mRNA vaccine. The outcome was diagnosis of myocarditis during hospitalization or an emergency department visit within 7-21 days of booster vaccination.</p> <p>Results<br> The overall rate of myocarditis was lower for the booster dose (6.41, 95% confidence interval [CI]: 3.50-10.75) than the second dose (17.97, 95% CI: 13.78-23.04); (Rate ratiobooster vs dose-2 = 0.34, 95% CI: 0.17-0.61). This difference was more apparent for the mRNA-1273 vaccine type. After the second dose, the myocarditis rate in males was significantly lower for BNT162b2 than mRNA-1273 overall and among those aged 18-39 years. In contrast, after the booster dose, no significant differences between myocarditis and vaccine type was observed overall or within the specific age groups among males or females.</p> <p>Conclusion<br> Myocarditis after mRNA COVID-19 vaccines is a rare event. A lower absolute risk of myocarditis was observed after a booster dose of mRNA vaccine than the primary series second dose.</p>
dc.description.sponsorship
This work was supported by the Canadian Immunization Research Network through a grant from the Public Health Agency of Canada and the Canadian Institutes of Health Research (CNF 151944). This project was also supported by funding from the Public Health Agency of Canada through the Vaccine Surveillance Reference Group and the COVID-19 Immunity Task Force.
dc.identifier.doi
https://doi.org/10.1016/j.ijid.2023.03.027
dc.identifier.issn
1878-3511
dc.identifier.pubmedID
36967038
dc.identifier.uri
https://open-science.canada.ca/handle/123456789/3416
dc.language.iso
en
dc.publisher - en
International Society for Infectious Diseases
dc.rights - en
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.rights - fr
Creative Commons Attribution - Pas d'utilisation commerciale - Pas de modification 4.0 International (CC BY-NC-ND 4.0)
dc.rights.uri - en
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.uri - fr
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.fr
dc.subject - en
Health
Epidemiology
Coronavirus diseases
Immunization
dc.subject - fr
Santé
Épidémiologie
Maladie à coronavirus
Immunisation
dc.subject.en - en
Health
Epidemiology
Coronavirus diseases
Immunization
dc.subject.fr - fr
Santé
Épidémiologie
Maladie à coronavirus
Immunisation
dc.title - en
A population-based assessment of myocarditis after messenger RNA COVID-19 booster vaccination among adult recipients
dc.type - en
Article
dc.type - fr
Article
local.article.journaltitle - en
International Journal of Infectious Diseases
local.article.journalvolume
131
local.pagination
75-78
local.peerreview - en
Yes
local.peerreview - fr
Oui
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