The paper authors note that, statistically, the prevalence of this non-fatal side effect is very small, relative to the sometimes-fatal disease they're being vaccinated against:<p>> <i>It is estimated that COVID-19 vaccination in males aged 12 to 29 years can prevent 11000 COVID-19 cases, 560 hospitalizations, 138 intensive care unit admissions, and 6 deaths compared with 39 to 47 expected myocarditis cases.</i>
Dr John Campbell made a good point recently. The vaccine is supposed to be intramuscular but nobody outside of South Africa is aspirating to know whether they hit a vein. If it goes into the blood stream that might explain the myocarditis and other vaccine injuries that are hard to explain given the supposedly local impact of the vaccines. Not a health care practitioner myself so it’s hard to know if this is a realistic concern. I know the nurse didn’t aspirate when I got my jabs. According to the WHO it’s controversial. Seems prudent to me.