The Group B streptococcus (GBS) is one of principal causes of neonatal sepsis and neonatal death by the vertical route, however there are few studies about the HIV infection and GBS in pregnancy. The aim of this study is to evaluate the GBS colonization in HIV infected pregnant women in prenatal care Pré-natal Especializado em infecções do Centro de Atenção Integral à Saúde da Mulher (PNE) – Caism – Unicamp. This is a observational study cross-sectional survey, envolving medical records and rec