Figure 2From: Modeling undetected live poliovirus circulation after apparent interruption of transmission: implications for surveillance and vaccinationConfidence about no circulation as a function of the detected-event free period and lines provided to indicate 95% and 99% for reference. a). Northern India. b). Northwest Nigeria 2014 current path (note change of x-axis scale). c). Northwest Nigeria increased tOPV (note change of x-axis scale). d). Tajikistan. e). Israel.Back to article page