NavGeneral InfoEmail Print Provider World Health Organization (WHO)Tabulations only Geography Global Coverage type Global Time period covered 01/2000 - present Data type Estimate Keywords Measles Citation Contributors World Health Organization (WHO) Publisher World Health Organization (WHO) Suggested citation World Health Organization (WHO). Retrospective Measles Data on Supplementary Immunization Activities. Geneva, Switzerland: World Health Organization (WHO). GHDx Entry last modified on: Oct 21, 2020