*Prior to 1954, the criterion of partial or complete paralysis of one or more muscle groups, detected on two examinations at least 24 hours apart, was all that was required.
*Laboratory confirmation and presence of residual paralysis was not required.
*Before vaccine, health officials were vigilantly on the lookout for polio. After the vaccine trials in 1954, they were vigilantly noting who developed polio--whether they were vaccinated or unvaccinated. Every effort was made to diagnose non-polio illness in the vaccinated individuals.
*Well, by 1955 it was clear the vaccine was not working very well. Paralysis cases increased! So, the criteria between paralytic and nonparalytic polio was changed. The new diagnostic criteria called for two exams 60 days apart (not 24 hours anymore). !Viola! With the power of the pen, less cases of polio!
*Any case of polio within 30 days of vaccination was recorded as preexisting, NOT vaccine-induced. How could they tell the difference, I wonder?
*1958, any nonparalytic polio case with meningeal signs (inflammation around spinal cord, but not paralytic) was taken out of the polio category ALTOGETHER and renamed aseptic meningitis! This eliminated a large portion of nonparalytic polio. Talk about a redefinition to suit an agenda!
Edited by BeckyBird - 2/16/13 at 1:48pm
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