Public health surveillance informs all actors in the system about the behavior of events of interest, which may individually or collectively affect people's health. This allows for a rapid and efficient response, minimizing the spread of diseases and reducing the risk of disease. impact on the health of the population. This work presents the report on social practice within the framework of the strengthening and monitoring of events of interest in public health according to national guidelines in the primary data generating units, Units of analysis of mortality cases due to ARI, EDA and Malnutrition in minors. five years, Debugging of databases for the preparation of Epidemiological bulletins, Consolidation of problem boards, realization of Covecom, RUAF - SIVIGILA correspondence, articulation of programs; Allowing reorientation of actions and giving a timely response to the National Institute of Health. It is concluded that surveillance is the backbone of all the programs of the operational dimension of public health of the territorial entity, allowing the surveillance personnel to contribute what they have learned in all the health-providing institutions, through the identification of risk factors, prevention of the occurrence of diseases, epidemiological alert actions, which contribute to the implementation of health policy design and the continuous improvement of the quality of life of the population of the District of Cartagena.