[Primary health care organization in the context of social exclusion/inclusion processes].

This article reports on a primary health care and training center in São Paulo, Brazil, and the organization of its activities based on equity and positive discrimination. Operating in the city center of São Paulo, the policy aims to provide health services access to certain target groups (homeless, sex workers, and slum-dwellers). It also raises discussion on the various forms of social life found in downtown areas, mainly those of vulnerable groups lacking access to public goods and services. The experience demonstrates the feasibility of implementing health policies based on universal access.