Figure 2From: The potential impact of expanding target age groups for polio immunization campaigns The impact of expanded age groups and other scenarios on WPV1 incidence in northern India. Arrows indicate the time of elimination in the model for each scenario. (a) Bihar – type 1, (b) Bihar – type 3, (c) Western Uttar Pradesh (WUP) – type 1, (d) WUP – type 3.Back to article page