A new case report documents how a healthy 14-year-old Japanese girl died unexpectedly two days after receiving her third dose of the Pfizer/BioNTech COVID-19 vaccine. The report, published on March 20, 2023, said the girl’s cause of death was “vaccine-related myopericarditis, which led to severe arrhythmias and progressive heart failure.” The day after she received her third dose, […]