Influenza-virus-vaccine: Myocarditis.

A 27-year-old man experienced myocarditis after receiving the influenza-virus-vaccine. He presented with chest pain, sweating, nausea, and vomiting, and his troponin levels were elevated. Treatment included aspirin and heparin, followed by colchicine and aspirin. A cardiac MRI confirmed the diagnosis of myocarditis, which was believed to be a result of the vaccine. The man's symptoms improved with treatment and the myocarditis was resolving. [Extracted from the article]