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Fig. 5 | BMC Infectious Diseases

Fig. 5

From: Planning for globally coordinated cessation of bivalent oral poliovirus vaccine: risks of non-synchronous cessation and unauthorized oral poliovirus vaccine use

Fig. 5

Comparison of the risks of unauthorized OPV use by serotype. Serotype comparison of the minimum duration after bOPV cessation or the tOPV-bOPV switch until unauthorized bOPV or tOPV use, respectively, leads to a cVDPV outbreak as a function of the extent of unauthorized use (analysis III). Unauthorized post-cessation RI OPV use proportion represents the proportion of covered children who receive a full schedule of the stopped OPV vaccine. a Population with properties like northern India. b Population with properties like northern Nigeria (y-axis range differ from panel a)

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