Acute Myocarditis Following COVID-19 mRNA Vaccination in Adults

JAMA Internal Medicine

EMBARGOED FOR RELEASE: 11 A.M. (ET), MONDAY, OCTOBER 4, 2021

Media advisory: The full study and editorial are linked to this news release.

Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/10.1001/jamainternmed.2021.5511?guestAccessKey=c75f7ff9-debb-42aa-a76a-6f8d955be709&utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=100421

 

What The Study Did: In this population-based study of almost 2.4 million people who received at least one dose of COVID-19 mRNA vaccines, acute myocarditis was rare, at an incidence of 5.8 cases per 1 million individuals after the second dose (1 case per 172,414 fully vaccinated individuals). The signal of increased myocarditis in young men warrants further investigation.

Authors: Ming-Sum Lee, M.D., Ph.D., of the Kaiser Permanente Los Angeles Medical Center, is the corresponding author.

 

(doi:10.1001/jamainternmed.2021.5511)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

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