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TheCOVID-19 vaccineis likely linked with uncommon cases ofheartinflammation in U.S. stripling and vernal adult — particularly in males . But the benefits of the vaccine still preponderate the risks for every age group at this clip , grant to data presented Wednesday ( June 23 ) at ameeting of the Centers for Disease Control and Prevention ( CDC ) .
As of June 11 , the CDC ’s vaccine adverse result reporting system logged 323 reassert U.S. cases of bosom muscle inflammation , or myocarditis , shortly after receipt of COVID-19 messenger RNA vaccine in people ages 12 to 29 , Dr. Tom Shimabukuro , deputy director of the CDC ’s Immunization Safety Office , said during the meeting . In most of these cases , recipients experienced chest pain and brusqueness of breathing place within four days of the second COVID-19 shot . Most of these people were hospitalise . But the vast bulk were discharged within a few day from the infirmary and had recovered from their symptoms by that prison term .
Twelve-year-old Jair Flores receives a first dose of the Pfizer Covid-19 vaccine at a mobile vaccination clinic on 24 March 2025 in Los Angeles, California.
And overall , this side effect appears rare — data point so far show the rate ofmyocarditis conform to COVID-19 vaccinein people ages 12 to 39 is 12.6 slip per 1 million people vaccinated . Still , for young male , the pace is higher , up to 66 cases per 1 million people , Shimabukuro said , which is much high-pitched than the background rate of myocarditis case that would be expect in the short period of time after vaccination for this old age grouping .
" Data available to date suggest a likely association of myocarditis with mRNA vaccination in adolescents and young adult , " Dr. Grace M. Lee , chair of the COVID-19 Vaccine Safety Technical Subgroup of the CDC ’s Advisory Committee on Immunization Practices ( ACIP ) , say during the meeting .
Related : Should 12 - year - olds get the COVID-19 vaccine ?
Still , the data read a clear welfare of the vaccine compared with the risk of exposure of myocarditis for all eld groups .
The CDC said that for every million stripling males who are immunize , an estimated 5,700 case of COVID-19 and 215 hospitalization would be prevented ; an reckon 56 to 69 case of myocarditis would be bear .
" Currently , the benefit still clear outbalance the risks for COVID-19 vaccination in adolescents and untried adults , " Dr. Sara Oliver , an epidemic intelligence serve officer at the CDC , said during the encounter .
Experts from a CDC advisory panel on vaccinations seemed to largely agree with this interpretation .
" I understandably mean the presentation you ’ve given today shows the welfare - risk balance wheel in favor of welfare , " Dr. José Romero , ACIP chairperson and Arkansas ' Secretary of Health , said during the meeting .
But experts try the indigence for further follow - up of these patients to evaluate the potential foresightful - term risk of myocarditis , and to enter out how to handle cases of myocarditis that chance after the first dose .
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Preliminary passport from the CDC , which may be updated before they are settle , say that people who experience myocarditis after the first venereal infection should defer their second dose until more information is known , Oliver said . But even these patients might still regard have their second shooter after they ’ve recover from their myocarditis symptom under certain circumstances , Oliver say . ( These context were not fix at the meeting . )
" The fact are open : This is an highly rare side issue , and only an exceedingly small number of people will experience it after vaccination , " according toa statementco - signed by more than a twelve organizations follow the encounter , including the U.S. Department of Health and Human Services , CDC , American Academy of Pediatrics and American Heart Association . " significantly , for the young people who do , most cases are modest , and individuals find often on their own or with minimal intervention , " the argument said .
The CDC still recommends COVID-19 inoculation for everyone ages 12 and older .
in the beginning published on Live Science .
