Data & Statistics, information available of core health indicators on demographic, socioeconomic characteristics as well as the health status and services at national and sub-regional level of the Americas
Guide to health and health-related epidemiological and statistical information from WHO. World Health Organization site also lists health related websites organized by country.
The GHO data repository contains an extensive list of indicators, which can be selected by theme or through a multi-dimension query functionality. It is the World Health Organization's main health statistics repository.