Effects of polio eradication activities on routine immunization: lessons from the 2013 outbreak response in Somali region of Ethiopia.

Introduction: Ethiopia experienced several WPV importations with a total of 10 WPV1 cases confirmed during the 2013 outbreak alone before it is closed in 2015. We evaluated supplemental immunization activities (SIAs), including lessons learned for their effect on the routine immunization program during the 2013 polio outbreak in Somali regional state.

Methods: We used descriptive study to review documents and analyse routine health information system reports from the polio outbreak affected Somali regional state.