%0 Journal Article %T Intervenci¨®n educativa en VIH/SIDA a adolescentes del Instituto Preuniversitario Vocacional de Ciencias Exactas "Carlos Marx", de Matanzas %A Achiong Alema£¿y %A Mercy %A Achiong Estupi£¿¨¢n %A Fernando Jes¨²s %J Revista Cubana de Higiene y Epidemiolog£¿-a %D 2011 %I Scientific Electronic Library Online %X the infection by human immunodeficiency virus (hiv), acquired by risky sexual intercourses, entails a significant morbidity and mortality mainly in young people. with a proper prevention, adolescents could to determine the future of epidemics adopting responsible sexual behaviors, thus, authors to characterize adolescents and to apply an educational intervention. in a prospective way 240 adolescents from tenth degree from the "carlos marx" exact sciences vocational pre-university of matanzas were polled from 2008 to 2009. a statistic examination was carried out by epiinfo statcalc program comparing the knowledges and attitudes before and after intervention. there was predominance of female sex with ages between 15 and 16 years. a few more than half of students started sexual intercourses at a mean age of 13,8 years and of them, only two thirds used condom in a permanent way. there was a lack of knowledge about the safe sex and protected sex. media were the main sources of information. had difficulties to differentiate the sick carrier as well as the moment to perform the hiv test. attitude towards disease is assessed as positive demonstrating the influence of pairs to take decisions. there was an increase of knowledges on hiv, but a disagreement with the sexual behavior suggesting a necessary continuity in the educational work. %K educational intervention %K hiv/aids %K responsible sexual behavior %K sage intercourse. %U http://scielo.sld.cu/scielo.php?script=sci_abstract&pid=S1561-30032011000300003&lng=en&nrm=iso&tlng=en