In a study published in the Canadian Medical Association Journal (CMAJ), Dr.  Zaeema Naveed (British Columbia Centre for Disease Control) and colleagues from the CITF-funded Canadian Immunization Research Network (CIRN) found that the rates of myocarditis following a COVID-19 vaccine have been low, and that age, sex and the type of vaccine administered are important factors to consider to further reduce the risk of post-vaccination myocarditis.