Low chance of heart problems after Covid-19 mRNA vaccine

The number of people who developed myocarditis or myopericarditis after receiving a Covid-19 mRNA vaccine is low – 1.4 persons per 100,000 for Pfizer/BioNTech and 4.2 persons per 100,000 for Moderna. — AFP Filepic

A study, published by The BMJ on Dec 16 (2021), provides more reassuring data on the risk of heart inflammation (myocarditis or myopericarditis) after the administration of mRNA (messenger ribonucleic acid) vaccines to protect against the SARS-CoV-2 virus.

It confirms previous reports of an increased risk after vaccination with the Pfizer/BioNTech and Moderna vaccines, but shows that the absolute number of cases was low, even in younger age groups, providing further evidence to support the overall safety of mRNA vaccines for Covid-19.