SummaryThe present war has focused attention upon Tropical Medicine and Tropical Public Health. The Secretaría de Salubridad y Asistencia of Mexico provides unusual opportunities for training and research in these specialities. The Instituto de Salubridad y Enfermedades Tropicales is the research center in tropical medicine. Field stations for the study of onchocerciasis exist in Huixtla, Chis.; for pinta at Arcelia, Gro., and for general tropical medicine in Boca del Río, Ver. A broad program in nutrition centers around the Instituto de Nutrición, and the Hospital for Nutritional Diseases. The control of malaria and other parasitic infections is receiving intensive attention, as well as typhus, pinta, and leprosy. Other laboratory facilities exist in the Laboratorio Central and Instituto de Higiene, as well as clinical facilities in her many hospitals.The Escuela de Salubridad e Higiene offers a complete course of instruction for Public Health Physicians, nurses and sanitary inspectors, including field work. Several well organized Health Centers serve as training stations for Public Health Personnel. Opportunities are available for specialized training as for example maternal and child hygiene, tuberculosis or venereal disease control.While these facilities were organized primarily for the training of Mexican personnel, they are at the disposition of other countries. Many of the staff of the Secretaría de Salubridad y Asistencia are bilingual.