Interesting paper came out recently calculating that teenage boys are 4 to 6 times more likely to be hospitalized because of myocarditis resulting from the COVID vaccine than from COVID.
This is mostly not because myocardititis is especially common, but more so because COVID is such a trivial risk to children and teenagers. Rates of hospitalization for myocarditis within 120 days of receiving the mRNA vaccine were 162 per million (ages 12-15) and 94 per million (ages 16-17). The risk of hospitalization from COVID in boys in these age groups in a 120-day period are 4 to 6 times lower than that, or about 30 per million.
This confirms the sense I expressed in my book that I would not recommend vaccination for children because they are at such trivial risk from COVID that almost any risk from the vaccine, including delayed side effects that would not appear in testing to date, would exceed the benefit.