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With the emergence of the AIDS epidemic in the decade of the eighties. Around the world, there are several challenges faced by society due to its rapid dissemination in global scale. The epidemic affects approximately 34 million people around the world, according to UNAIDS, the largest portion is observed in third world. The African continent with over 800 million inhabitants, which contains 54 countries, is what most has suffered the impact of the disease presenting the largest portion of HIV patients in the world, with about 23.5 million infected registered. As globally, the concern that has sparked debates is the increasing feminization of the virus in Guinea Bissau, the country which consequently increased rates of vertical transmission of HIV, which according to recent projections, the risk is estimated at 8.9% (PEN III,2012). The advent of antiretroviral (zidovudine) in 1994, from the publication of 076 protocol of the ACTG come to change the scenario of vertical transmission. In Guinea-Bissau, the arrival of antiretrovirals in 2006, marked a new phase in the fight against the spread of the vírus particularly in the context of vertical transmission, providing more life quality and chances of a child born without AIDS. The NGO "Associação Céu e Terras" acts in the country since 2001, and in 2007 adopted the protocol recommended by WHO with triple therapy and exclusive breastfeeding, in order to reduce vertical transmission in the country. Objective Analyze the performance of the NGO "Associação Céu e Terras” as the prevention of vertical HIV transmission in the context of Guinea-Bissau. Examine the proposal from the introduction of the new protocol of triple antiretroviral therapy, exclusive breastfeeding, 2007 – 2011. Method– It is a descriptive study of secondary data from mothers and their children whose women enrolled in the period July 2007 to June 2011 the institution (NGO) "Associação Céu e Terras” in Bissau, Republic of Guinea-Bissau program. The population studied was composed of 430 HIV-positive women and 417 children born of those mothers who participated in the program to prevent vertical transmission in NGOs. To analyze the occurrence of vertical transmission in this population were analyzed mainly the social, cultural, the adherence to therapy, the type of breastfeeding practiced and route of delivery. For data analysis, we used the SPSS 18.0 program. Result – among 430 pregnant there were 7 cases of maternal deaths and 417 children were born alive, among these, 347 children were tested at final follow up, 328 resulted HIV negative and 19 HIV positive, meaning, the transmission vertical occurred. Of the live births, 11 of them died before reaching 18 months and 13 have died after 18 months of life. It is important to report that 13 cases of fetal death. ConclusionsAmong this population during that period, the rate of vertical transmission was 4.6%. Amount which well below the estimated by the government. The analysis made for the study period showed a decrease in vertical transmission, have suggested a slight decreasing trend during the semesters studied, but no difference between them. It was also observed failure in adherence to antiretroviral therapy being the main cause of this occurrence in the transmission, on the other hand, the mode of delivery and breastfeeding practiced are strong allies in this occurrence, without forgetting the cultural and social issues strongly present in Guinean society that influence the effectiveness of the program in not further reduce the rate of vertical transmission and spread of HIV in the country.

Análise do programa de prevenção da transmissão vertical do vírus HIV na ONG Associação Céu e Terras, Guiné - Bissau, 2007-2011