Although Uganda reported large reductions in HIV/AIDS prevalence during the 1990s, recent evidence suggests that the country's rate of new HIV infections is on the rise. Motivated by Uganda's reversal of fortunes regarding HIV/AIDS control, this study explores the factors that are correlated with sexual behaviour and the risk of HIV infection using a unique dataset of 19,534 individuals from the 2011 Uganda AIDS Indicator Survey. This survey tested individuals 15-49 years of age for sexually transmitted infections, including HIV. We estimate probit models for the correlates of risky sexual behaviours that can lead to HIV infection, such as having concurrent sexual partners. In addition, we estimate models for correlates of the risk of testing HIV positive. We find that higher education attainment and access to health facilities are important for adopting safe sexual behaviour, as well as reducing the risk of testing HIV positive. Among HIV infected couples, we find that women have a higher rate of discordance, which is at odds with the low rates of self-reported extra-marital sexual behaviour. . I wish to express my deep appreciation to African Economic Research Consortium (AERC) for the financial support to carry out this research. I am are also grateful to the resource persons and members of AERC's thematic Group A for various comments and suggestions that helped the evolution of this study from its inception to completion. I am indebted to the anonymous referees who reviewed the paper and provided comments and suggestions that helped in shaping and improving the overall quality of the paper. The findings made and opinions expressed in this paper are exclusively those of the author. The author is also solely responsible for content and any errors.