In 2011 there were an extra 47500 new cases of NPAFP [non-polio acute
flaccid paralysis]. Clinically indistinguishable from polio paralysis
but twice as deadly
In 1976, Dr. Jonas Salk, creator of the
killed-virus vaccine used in the 1950s, testified that the live-virus
vaccine (used almost exclusively in the U.S. from the early 1960s to
2000) was the 'principal if not sole cause' of all reported polio cases
in the U.S. since 1961
The polio death rate was decreasing on its own be- fore the vaccine was introduced
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