File:Polio-Eradication-Initiative.jpg: Revision history

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27 October 2010

  • curprev 13:1013:10, 27 October 2010S8600021 talk contribs 649 bytes +649 ==Oral Polio Vaccine== A bivalent oral polio vaccine (BOPV) is presently being used in countries with high existing polio rates, India and Nigeria. A recent WHO release has shown the largest ever year-to-year drop in polio cases following the use of BOPV