The piece is more about efficacy than safety. Apparently the Salk vaccine was actually not that effective, and it wasn't until the Sabin vaccine subsequent to the article that the disease really was eradicated.
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Net 54-- the discussion board where people resent discussions. 
My avatar is a sketch by my son who is an art school graduate. Some of his sketches and paintings are at
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Last edited by Peter_Spaeth; 05-14-2021 at 06:49 PM.
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