This article examines the links between Argentina and Pan American Health Organization (PAHO) through the case of the School of Public Health of University of Buenos Aires, since its foundation in 1958 until the 1970's. In dialogue with contemporary Works that investigated the rise of international agencies of Public Health in different regions of the world, wonder about the role played by PAHO in Argentina in the sixties and seventies. From a corpus of archival materials (such as administrative files, periodicals, etc.) and secondary sources, we present the historical background of the relationship between some Argentine doctors and the Pan-American organization, as well as the beginnings of collaboration between local and international entities for the training of specialists in public health. After this we try to reconstruct the actions carried out by the Pan-American organization in Argentine territory with special emphasis on the case of the development of the School of Public Health.