 The NUNA One Health and Demographic Surveillance System, HDSS, is located in rural Burkina Faso and has existed since 1992. Longitudinal data analyses show that childhood, as well as overall mortality, has significantly decreased over the observation period 1993 and HashX 2013, 2007. This article was authored by Ali Sai and HashX 00E9, Val and HashX 00E9, Ria Lui, Ajima Bangu, and others.