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. 2017 Jul 1;216(Suppl 1):S1–S8. doi: 10.1093/infdis/jix117

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© The Author 2017. Published by Oxford University Press for the Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 IGO (CC BY 3.0 IGO) License (https://creativecommons.org/licenses/by/3.0/igo/) which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — Rationale, risks, mitigation strategies, and operational considerations for withdrawal of the type 2 component of oral poliovirus vaccine (OPV2). Abbreviations: AFP, acute flaccid paralysis; bOPV, bivalent oral poliovirus vaccine; cVDPV, type 2 circulating vaccine-derived poliovirus; IPV, inactivated poliovirus vaccine; mOPV, monovalent oral poliovirus vaccine; tOPV, trivalent oral poliovirus vaccine; WPV2, type 2 wild poliovirus.