Poliomyelitis
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
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Religious Studies, Education, Psychology, History, Literature, Philosophy, Entire Library
...people who have had severe polio experience postpolio syndrome...in 1955. By 1961 the Sabin vaccine, a preparation made from weakened...than a thousand new cases of polio worldwide. In 2003 4 the campaign...in N Nigeria refused to use vaccines they believed would sterilize...However, by early 2007, polio was, according to WHO, endemic...