Guidance

Replacing trivalent OPV (tOPV) with bivalent OPV (bOPV): Quick reference summary

We are close to the eradication of polio, with a new global endgame plan leading the way to a polio-free world. In the last two decades, immunization efforts have reduced the number of polio cases globally by more than 99%. Of the three poliovirus types (types 1, 2, and 3), type 2 wild poliovirus has been eradicated since 1999.

Languages

  • English

Publication year

2015

Publisher

World Health Organization

Type

Guidance

Categories

  • Programme management

Diseases

  • Polio

Tags

  • OPV
  • Planning, budgeting and financing