[Sharing experiences: rotation in primary care in Posadas, Argentina].

Primary care should be the cornerstone of any health system. It is the first contact with the community health system of any country. The Declaration of Alma-Ata, 1978, seeks to provide the basis for the construction of a new health system that will allow the full exercise of the right to health. Carrying out an external rotation in Primary Care in Posadas, Misiones Province, Argentina, during medical training, in family medicine, offers an insight into how other health systems work, provide health care to the community in a Primary Care Center in a country with its similarities and differences like ours, follow the implementation of programs, working with family medicine residents in another country, and living a rewarding personal and professional experience.