https://pubmed.ncbi.nlm.nih.gov/41855201/

 I notice a lot of the people claiming all those kids were dying of heart attacks are silent now.  It's pretty clear there aren't millions of headstones in children cemeteries.  

 Even the guy who bought hundreds of child caskets in Canada said "it was a bad investment".

 One reason there are more healthy kids now however is not the vaccine itself but the emergence of heart imagery among youth.  If anything Covid definitely revealed inflammation among seemingly healthy youth, which explains why sudden cardiac death was the leading cause of death in young athletes for decades and decades.