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Twelve‐lead electrocardiogram of a 24‐year‐old man who developed severe, stabbing chest pain radiating to both shoulders and markedly elevated high‐sensitivity troponin T levels (peak 635 ng/L) after receiving the BNT162b2 mRNA vaccine as a booster. There are conduction abnormalities (aVL, III, aVF) and non‐specific ST‐segment changes in the precordial leads.
