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Table 2 Unreached U5 children overall

From: Finding inhabited settlements and tracking vaccination progress: the application of satellite imagery analysis to guide the immunization response to confirmation of previously-undetected, ongoing endemic wild poliovirus transmission in Borno State, Nigeria

Year Unreached u5 children % of total u5 population
2016 337,411 30.4
2017 157,256 14.2
2016–2017 ∆ 180,155