Recent Examples on the WebPeople at risk for myocarditis — those who are ages 18 to 24 — should wait three or four months between boosters. Julie Washington, cleveland, 8 Sep. 2022 One rare complication is myocarditis, inflammation of the heart, which has been seen more commonly in younger men.al, 21 June 2022 Neither trial reported any cases of myocarditis — inflammation of the heart muscle. Aria Bendix, NBC News, 17 June 2022 There were no cases of myocarditis or pericarditis (inflammation of the heart muscle or its lining) among children six months through four or five years old in either respective trial. Tanya Lewis, Scientific American, 15 June 2022 Kjerstad faced several hurdles before Friday, missing the 2021 season because of myocarditis, a heart condition. Andy Kostka, Baltimore Sun, 10 June 2022 The panelists viewed data that showed that the risk of myocarditis, a side effect of the vaccine, is less common in younger children. Matthew Herper, STAT, 24 May 2022 Younger men and others concerned about the risk of myocarditis, a rare but potentially serious type of heart inflammation associated with mRNA vaccines, may see NVX-CoV2373 as a safer alternative. Karen Kaplanscience And Medicine Editor, Los Angeles Times, 24 May 2022 Akanno was diagnosed with myocarditis, an inflammation of the heart muscle.oregonlive, 8 Feb. 2022 See More