This is a thorough study, published by Nature, using data from Israel to investigate the correlation between vaccination and the recent increase in cardiovascular events in the under-40’s. The authors look at the discuss the potential long-term impact of myocarditis as a risk factor for future cardiovascular issues. The estimates they use for myocarditis are very conservative compared to some studies (discussed in other blogs)…i.e. the issue is probably far more wide-spread then is generally acknowledged. “Increased emergency cardiovascular events among under-40 population in Israel during vaccine rollout and third COVID-19 wave | Scientific Reports”