Myocarditis after Covid vaccine low among teens and young adults, large study finds The heart-related condition usually occurred within four days after the second dose of a Covid vaccine, the study found. NBC News

The incidence of myocarditis and pericarditis after Covid vaccination is low and most patients make a full recovery, a large international study from Nationwide Children’s Hospital found.

Most of the cases occurred in male teens and young adults and usually after the second dose of a primary series of either the Pfizer-BioNTech or Moderna vaccine, according to the study published Monday in JAMA Pediatrics.

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