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Previous Volume 359:1726-1727 October 16, 2008 Number 16 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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The polio eradication campaign initiated in 1988 by the World Health Organization (WHO) led to an impressive decline in cases of paralytic poliomyelitis around the world. The eradication strategy involved highly organized mass immunization campaigns, relying solely on the trivalent oral polio vaccine developed by Albert Sabin and licensed in the United States in 1963. Monovalent versions of oral polio vaccine had been licensed earlier but were abandoned in favor of the trivalent combination oral polio vaccine to simplify immunization schedules. Efficacy was not considered to be a significant issue, and differences between monovalent and trivalent vaccines were never formally . . . [Full Text of this Article]

This article has been cited by other articles:

• (2008). Baby Steps Toward Polio Eradication. JWatch Infect. Diseases 2008: 1-1 [Full Text]