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OBJECTIVE To determine the incidence of heterosexual human immunodeficiency virus type 1 disease transmission and the effect of zidovudine therapy on this risk of transmission. DESIGN A cohort of(More)
To investigate the risk factors for man-to-woman sexual transmission of the human immunodeficiency virus (HIV), we carried out a cross-sectional study of 368 women who were steady partners of(More)
To assess the incidence and time trends of human immunodeficiency virus (HIV) infection among intravenous drug users (IVDUs) and to evaluate the opportunities for prevention, we studied IVDUs(More)