[Organization of the universal vaccination program against hepatitis B in school children and coverage of the first year of vaccination. Extremadura].

This paper studies the proportion of the population reached by the programme of universal vaccination against Hepatitis B for children of 13 during the first year since its introduction in Extremadura (Spain). A reach of 96.04% is considered satisfactory and higher than that achieved in other pilot programmes, and even higher than that of other childhood vaccines. This is attributed to the energetic organization of the programme within those activities aimed at children of school age, to the information and participation by the various social and institutional bodies involved, to the work of the Extremaduran Health Education Board, and to the ongoing work of teams of health workers and doctors. There are no significant differences between urban and rural Health Clinics. These differences are to be found in those areas where the aforementioned teams and the traditional model have begun to operate. Given the existing health system in this country and the widespread nature of the illness, it is assumed that the most effective method of vaccination would be that aimed at the high-risk population, the children of mothers who are carriers, and universal vaccination of school-age children.