An incidence of fatal myocarditis has been reported from Japan in an individual who took a COVID-19 shot, with the person dying nine days after hospitalization.
The case report, published in the National Library of Medicine on Feb. 2, investigated a healthy 40-year-old Japanese man who suddenly experienced tachycardia and lost consciousness two days following his second Pfizer COVID-19 vaccine. Tachycardia refers to a high heart rate of more than 100 beats a minute. The autopsy revealed he died from “lethal arrhythmia with myocarditis that developed after COVID-19 mRNA vaccination.” Arrhythmia is an irregular heartbeat, and myocarditis is an inflammation of the heart muscle called myocardium.
