The main objective of this course is to present the basic principles of molecular epidemiology to epidemiologists and laboratory professionals, working in national and latin-american institutions with infectious diseases of importance in public health in their respective countries. The course was designed in order to offer to these professionals new approaches and strategies primarily for infectious diseases. The secondary objective is to take this opportunity to establish the Gonçalo Moniz Research Center as a training center in research and techniques of molecular epidemiology in Brazil.