HIV/AIDS has disproportionately impacted men who have sex with men (MSM) in high income countries since the beginning of the epidemic. Among all vulnerable HIV populations, MSM account for the preponderance of prevalent AIDS cases in Western Europe, United States, Canada, Australia, and New Zealand. In contrast, in many low and middle income countries HIV epidemics were mainly driven by heterosexual sex, injection drug use, and/or contaminated blood collection and transfusion, with MSM comprising a small share of all HIV cases. However, recent data shows rapid increases in the HIV epidemic among MSM in Asia, Africa, South America, Eastern Europe, and Central Asia.

We invite investigators to contribute original research articles as well as review articles that will improve our understanding of the dynamics of HIV epidemic among MSM in countries of all incomes. Potential topics include, but are not limited to:

• Measuring and modeling the dynamics of the HIV epidemic and transmission patterns
• Characterizing factors such as the social networks and known behavioral factors that are driving the dynamics of the epidemic in this population
• Epidemiology of comorbidities and sexually transmitted infections/viral hepatitis coinfected with HIV
• Biological and social/structural factors for infectivity, progression, and transmission of HIV
• Measuring and modeling the impact of initiatives that reduce infectiousness of HIV treatment-as-prevention and preexposure prophylaxis
• Molecular epidemiology of HIV in MSM

Before submission authors should carefully read over the journal’s Author Guidelines, which are located at http://www.hindawi.com/journals/bmri/guidelines/. Prospective authors should submit an electronic copy of their complete manuscript through the journal Manuscript Tracking System at http://mts.hindawi.com/submit/journals/bmri/epidemiology/dmsm/ according to the following timetable: