The basic strategy for development of hydatid struggle programs is in the actuality: Primary Attention of Health. In the present work and in this instance, it's arm a precocious detection system of hydatid disease, fixed in immunologic diagnostic by means of ELISA technical beginning with blood capillary samples, taked in filter paper by teachers and sanitaries agents from official services of Rio Negro Province. 177 teachers and 45 sanitaries agents were trained, correspondent to 25 schools, 3 lodging schools and 9 Hospitals all of them from rural area. 890 blood samples during the training were obtained. Lastly, the trained personal armed the system and they obtained 728 samples in the beginning of the Program. It hadn't statistical differences in the reactivity of both samples. The serological prevalence found was 1.32%. The activity displayed by teachers and sanitaries agents permited to detect 21 new cases it was the 20% of new cases diagnosticated in this area in the period of work. The viability and the importance of the incorporation of non traditional effectors into the Hydatid Control Programs is discussed.