FOI release

Myocarditis following exposure to Comirnaty

Case reference FOI2025/01326

Received 23 December 2025

Published 5 February 2026

Request

Dear Medicines and Healthcare Products Regulatory Agency, please provide me with reports of myocarditis and pericarditis outcome (death or other) after exposure to COVID-19 mRNA vaccine PrifzerBioNTech Comirnaty from licensing in 2021 to the end of 2024. We are sure you hold this information as both conditions are a recognised harm of the vaccine. We would like to see your follow up of this important issue, augmented by the Yellow Card Reports show.

Response

See attached

Documents

• FOI2025_01326 (redacted).pdf (1.0 MB)

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