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Aim: To determine the prevalence of HIV infection and associated risk factors among rural pregnant women in Plateau state, Nigeria. Study Design: The study involved a cross-sectional study of pregnant rural women in antenatal clinics (ANCs) in five (5) rural villages of Mangu Local Government area of Plateau State, North Central Nigeria. Methodology: A total of 248 pregnant women with mean age of 26 years were recruited through a random sampling method during ANCs with pre and post counseling initiated and a structured survey questionnaire used. Venous blood samples were collected using needles and syringes, thereafter transported to a central point at Gindiri, centrifuged and serum sent to Plateau Specialist Hospital virology laboratory for HIV testing. Results: Participants with less than six (6) months planned postpartum sexual abstinence(cultural to abstain from Sexual Intercourse during pregnancy) were 8 times significantly more likely (OR 8.2; 95% CI 1.4, 42.0) to be infected compared with those who observed more than six (6) months planned postpartum abstinence. Also, women from polygamous marriages had a five-fold greater and significantly odds (OR 5.36; 95%CI 1.3, 24.5) of being HIV positive compared to women from monogamous marriages. Furthermore, parous women were 4 times significantly more likely (OR 4.66; 95%CI 1.1, 20.0) to be infected than nulliparous women. Previous exposure to malaria and educational status were not significantly associated with HIV infection. Conclusion: HIV prevalence was 3.2% (95% CI; 1.5 – 6.5)comparable to Nigerian’s current overall prevalence rate and high lights need to …