Exploratory sensitivity analysis of model inputs and assumptions that characterize routine immunization (RI) (reference case shown in italics).

a Defined as occurrence of fully-reverted virus prevalence above the transmission threshold (EPI*), including due to cVDPV emergence after OPV cessation, or failure to interrupt cVDPV transmission before OPV cessation.b Asterisk indicates continued cVDPV2 transmission at 1/1/2016, but at such low levels that it has negligible impact on Rn at January 1, 2016.Exploratory sensitivity analysis of model inputs and assumptions that characterize routine immunization (RI) (reference case shown in italics).