In several countries in the Middle East and North Africa, HIV epidemics are emerging among men who have sex with men (MSM), report researchers from the Middle East, North Africa, and the United States (Mumtaz G et al. PLoS Med. 2011;8:e1000444).
In this study, the first of its kind in these regions, researchers collected and analyzed biological, behavioral, and other related data on HIV in MSM. While the authors found the prevalence of HIV infection among MSM to be low in some countries, in others they found evidence of concentrated epidemics. For example, in Egypt, Sudan, and Tunisia, HIV infection rates were above 5% in certain population groups, and in one setting in Pakistan, HIV prevalence was 28%.