Polio endgame: the global switch from tOPV to bOPV.

@article{Garon2016PolioET,
  title={Polio endgame: the global switch from tOPV to bOPV.},
  author={Julie Garon and Katherine G Seib and Walter A. Orenstein and Alejandro Ramirez Gonzalez and Diana Chang Blanc and Michel J. Zaffran and Manish M Patel},
  journal={Expert review of vaccines},
  year={2016},
  volume={15 6},
  pages={
          693-708
        }
}
Globally, polio cases have reached an all-time low, and type 2 poliovirus (one of three) is eradicated. Oral polio vaccine (OPV) has been the primary tool, however, in rare cases, OPV induces paralysis. In 2013, the World Health Assembly endorsed the phased withdrawal of OPV and introduction of inactivated poliovirus vaccine (IPV) into childhood routine immunization schedules. Type 2 OPV will be withdrawn through a globally synchronized "switch" from trivalent OPV (all three types) to bivalent… CONTINUE READING
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