Dr. Paul Offit is the director of the Vaccine Education Center at Children's Hospital of Philadelphia and is also a member of the FDA's Vaccines and Related Biological Products Advisory Committee.
Here he discusses myocarditis, inflammation of the heart muscle, a side effect that has long been linked to the COVID vaccines, and suggests that the coronavirus' spike protein (which the vaccines prompt the body to churn out) could be causing the body to mount an immune response against its own heart.