Vax can lead to myocarditis and myocarditis can lead to heart attacks or sudden death years later. Some studies say that 2-3% are affected, some say even more. All studies say that younger people are more affected than the old. But myocarditis can be diagnosed and there are drugs that stabilize the condition. Every vaccinated person should see a cardiologist for some tests to be sure they aren't affected. It's now our task to carefully convince friends and family to see the doctor.