Epidemiology: Edited by Tim Mastro and Quarraisha Abdool-KarimThe global epidemic of HIV infection among men who have sex with menvan Griensven, Fritsa,b; de Lind van Wijngaarden, Jan Willemc; Baral, Stefand; Grulich, AndreweAuthor Information aThailand Ministry of Public Health–US Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand bDivision of HIV/AIDS Prevention, Atlanta, Georgia, USA cUNESCO, Bangkok, Thailand dBloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA eNational Centre in HIV Epidemiology and Clinical Research, University of New South Wales, Sydney, New South Wales, Australia Correspondence to Dr Frits van Griensven, Thailand Ministry of Public Health–US Centers for Disease Control and Prevention Collaboration, DDC7 Building, Ministry of Public Health, 11000 Nonthaburi, Thailand E-mail: firstname.lastname@example.org Current Opinion in HIV and AIDS: July 2009 - Volume 4 - Issue 4 - p 300-307 doi: 10.1097/COH.0b013e32832c3bb3 Buy Metrics Abstract Purpose of review In the last few years, there have been reports of new, newly identified and resurging epidemics of HIV infection among men who have sex with men (MSM). This article reviews and summarizes the global epidemic of HIV infection among MSM. Recent findings In the Western world, the increase in notifications of new HIV infections among MSM is continuing. Steep increases in reports of new HIV diagnoses among MSM were also seen in the developed economies of East Asia. In the developing world, epidemiologic studies have now established the presence of MSM populations in Africa, China and Russia and a high HIV prevalence among them. High and increasing HIV prevalence was also reported from South and Southeast Asia, and Latin America and the Caribbean. Summary HIV continues to spread among MSM on a global level. Current prevention efforts have been unable to contain or reduce HIV transmission in this population. Additional behavioral and biomedical interventions are urgently needed. © 2009 Lippincott Williams & Wilkins, Inc.