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Tanzania: polio campaign monitoring reports

Summary of monitoring data

The graphic below summarizes the quality of polio campaigns since the independent monitoring  process was started in 2009. The bars represent the percentage of missed children (those with no marks on their fingers to attest to their having been vaccinated), both during house-to-house monitoring and out-of-house monitoring. The average is given for each area covered, which may be national or sub-national. In parentheses below is the range within the area. NIDs signify National Immunization Days; SNIDs are sub-national.