“Highlights:
Since the start of the COVID-19 immunization program in Ontario, there have been 314 reports of myocarditis or pericarditis following receipt of COVID-19 mRNA vaccines in Ontario…
The highest reporting rate of myocarditis/pericarditis was observed in males aged 18-24 years following second dose. The reporting rate in this group following the Pfizer-BioNTech vaccine as second dose was 37.4 per million doses and was 263.2 per million following the Moderna vaccine as second dose.”
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