What are the roles of community health workers? Looking back at the philosophies of primary health care.

This commentary discusses the different roles of community health workers (CHWs), their challenges and limitations in a historical perspective of primary health care (PHC). We first try to show that the comprehensive philosophy of PHC promulgated in Alma-Ata proposed the role of CHWs as actors who work in community development. On the other hand, in the 1980s, with the emergence of the selective philosophy of PHC, CHWs' role was more affiliated with the health system. We conclude our pitch about the balance that can exist between these different roles by suggesting that CHWs can work in continuity with the health system, but they should not be considered as affordable labor. Also, they must be supported in their activities to develop their communities, allowing them to participate effectively in programs and policies that concern them and their community.