Abstract Background & Aim: The study was conducted in the aim to figure out the demographic factors that fueling prevalence of H.I.V/AIDS in 2011/12-Mbeya region. The demographic data of the cross-sectional years 2011/12 was used. The study encompassed male and female individuals aged 15-49. Methods & Materials: The binary logistic regression model was used employed and demographic factors that were considered to have an impact on the prevalence of the epidemic were included in our analysis. ...