Fig. 2From: Implementation of coordinated global serotype 2 oral poliovirus vaccine cessation: risks of potential non-synchronous cessationAnalysis I results showing selected percentiles from the distribution of net reproduction numbers (Rn values) for the 520 subpopulations in the global model [4] that used OPV-only as of 2013 assuming no tOPV intensification before the tOPV to bOPV switch in April 2016. a Rn values for OPV2 (stage 0). b Rn values for stage 10 OPV2-related virus. c Rn values for VDPV2 (stage 19)Back to article page