Just by my layman’s understanding these shots program your body to produce something that wasn’t there and isn’t natural. That’s why the FDA had to change the definition of “Vaccine.” Now vaccine is defined as well as Ilhan Omar’s take on 9-11-2001. “Some drugs do something.” Every other vaccine and inoculation used weakened versions of whatever disease and triggered a real immune response from natural entities that humans have evolved with for millennia.
I haven’t heard of other vaccines have a great number of “breakthroughs” this one has. Polio, measles, smallpox “breakthroughs” would be well broadcast if that were the case, but it isn’t.