Diagnostic criteria for claiming a "case" of poliomyelitis changed the exact same year the polio vaccine was introduced - creating the imediate illusion of the vaccine was "working"!
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1955: Did Salk's Polio vaccine reduce polio…
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Diagnostic criteria for claiming a "case" of poliomyelitis changed the exact same year the polio vaccine was introduced - creating the imediate illusion of the vaccine was "working"!