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To: Secret Agent Man
Did you know that before the polio vaccine, polio infections had been decreasing steadily on their own

Again, I direct you to Incidence Rates of Poliomyelitis in US. The polio vaccine was developed in 1953 and widespread trials begun in 1954. When was this supposed steady pre-vaccine decline?

188 posted on 02/15/2012 7:44:43 PM PST by Conscience of a Conservative
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To: Conscience of a Conservative

http://www.vaclib.org/sites/debate/polio.html

http://www.whale.to/vaccines/polio.html


193 posted on 02/15/2012 8:13:37 PM PST by Secret Agent Man (I'd like to tell you, but then I'd have to kill you.)
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