Exploratory sensitivity analysis of model inputs and assumptions that characterize SIAs (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 1/1/2016. Exploratory sensitivity analysis of model inputs and assumptions that characterize SIAs (reference case shown in italics).