What explains rare heart condition among young men after Covid vaccines? A new study offers clues
A new study sheds light on what may be causing very rare cases of heart inflammation in young men after receiving an mRNA Covid vaccine.
Early hypotheses as to what was driving the heart inflammation, called myocarditis, included an allergic response to the vaccine, vaccine-induced antibodies, or an autoimmune response in which the immune system attacks the body’s own healthy tissue by mistake. But the study, published Friday in Science Immunology, doesn’t find evidence for any of these mechanisms.
