MRNA Vaccine Benefits Outweigh Heart Risks, CDC Reports

The benefits of messenger RNA Covid-19 vaccines clearly outweigh the risks despite heart complications seen in a relatively small number of mostly young men, according to the U.S. Centers for Disease Control and Prevention.

Roughly 1,200 cases of myocarditis, or inflammation of the heart wall, were reported in people who received mRNA vaccines, the CDC said in its Morbidity and Mortality Weekly Report on Tuesday. But with about 296 million doses of mRNA vaccines having been administered as of June 11, the benefit is clear in all populations, including adolescents and young adults, the researchers reported.

Vaccines made by ...