World Health Organization
Very wide range of information from this U.N.-related body, with many user-customizable features. Note especially the Library, the Bulletin of the WHO, and the Data and Statistics sections, as well as the annual World Health Reports and World Health Statistics Reports. The WHO Statistical Information System is "the guide to health and health-related epidemiological and statistical information available from the World Health Organization." The Global InfoBase "collects, stores and displays information on chronic diseases and their risk factors for all WHO member states." The Media Centre provides the latest information. Disease Outbreak News offers the latest news and reports on communicable disease surveillance and response around the world. The International Travel and Health report "provides information on the main health risks for travelers." There is also a Tropical Diseases section.