CDC says vaccine link to heart inflammation is stronger than previously thought

Created on 2024-01-24T08:05:38-06:00

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Although it has not been officially confirmed to be an associated problem, the agency is investigating 226 cases of myocarditis, the inflammation of the myocardium in the heart, and pericarditis, the inflammation of the pericardium, among young, vaccinated men. Myocarditis and pericarditis share the same symptoms, including fever, fatigue, shortness of breath and a particular type of chest pain. 

In most cases, an investigation would have been warranted if there were fewer than 100 cases, NBC News reported.