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Message: <blockquote data-quote="Non liberal" data-source="post: 5065417" data-attributes="member: 94513"><p>And so you know, the polio vaccine was not effective in 1955, in fact, it was discontinued because it was killing people. The vaccine did not come about untill 1963, at least one that was somewhat safe. And since it came out in 1963, then by your own little graph there.. it was already coming down. You know why? Because polio is easily contracted through sewage. And a lot of homes didn’t get indoor plumbing untill the early 1960s and since the history of preventative medicine is not very good, I’ll go with cleaner, more sanitary conditions as to why the death rate started going down.</p></blockquote><p></p>