Costa Rica's healthcare system is unique because it is socialized and has achieved excellent health indicators. The course focuses on the history and development of the public health care system within the Costa Rican socio-political and economic situation. It also emphasizes how the system works and points out not only the strongholds of the systems but also its weak points. We will discuss different tropical diseases during this course, some very common for countries not developed. Students will learn about the prevention and transmission of relevant tropical diseases.