A peer-reviewed study of over one million healthy children and teens set out to assess the safety and effectiveness of the Pfizer-BioNTech BNT162b2 COVID-19 vaccine – and found that “myocarditis and pericarditis were documented only in the vaccinated groups, with rates of 27 and 10 cases/million after the first and second doses, respectively.” Published in January at Epidemiology, the study, from researchers Colm, Andrews et al, from the Universities of Oxford and Bristol, and Harvard’s School of Public Health, examined the safety and effectiveness of Pfizer’s COVID shot in healthy children aged 5-15 as the vaccine launch began in late 2021.