Note that 13.84 billion is a huge number, if every dose was a powerball lottery ticket we should see around 64 jackbot winners. That means nearly every weird thing that can happen by chance, will happen. And since people were on the edge every weird thing will be reported. But even these reports are all like "yeah that person eas already on the verge of dying or had some other weird medical condition and we can't really establish a clear chain of causality".

Maybe I am a bit allergic to a generic anti-modern-medicine stance, since my neighbour (my best friends mom), died of a preventable disease because she didn't want to get the known-safe medical remedy and spent a fortune on shamans and other greedy healers instead. She wanted a natural thing and died (as was natural before the advent of modern medicine).