You missed the part about heavy metal toxicity, and the poisonous injections certainly existed long before 1956.
The condition of polio, if not the name, was around long before the time of the charlatan Pasteur, as were heavy metals,
poisonous drugs, and toxic pollution.
This was already pointed out to you
in a previous thread in which you stated that swimming pools could cause polio,
completely ignorant of the fact that lead from lead in water pipes was the cause of the condition, not the swimming pools.
The constant willful ignorance and bias of people who work for the toxic pharma corporations is quite predictable.