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.