NavGeneral InfoEmail Print Geography Sierra Leone (SLE) Coverage type Country Time period covered 01/1991 - 12/1991 Data type Survey Summary This source appears in the WHO and UNICEF Survey Data for Immunization Coverage Time Series 2014. Keywords BCG vaccines, DTP vaccines, Immunization, Measles vaccines, Polio vaccines Citation Suggested citation Sierra Leone National EPI Coverage Evaluation Survey 1991. GHDx Entry last modified on: Jun 3, 2021