The emerging face of the HIV epidemic in the Middle East and North Africa.

"Conflicts of interest There are no conflicts of interest."

"This publication was made possible by NPRP grant number 4-924-3-251 from the Qatar National Research Fund (a member of Qatar Foundation). Support was provided by the Biostatistics, Epidemiology, and Biomathematics Research Core at the Weill Cornell Medical College in Qatar. The authors are also grateful to the World Bank, the MENA Regional Support Team (RST) of the Joint United Nations Programme on HIV/AIDS (UNAIDS), and the Eastern Mediterranean Regional Office (EMRO) of the World Health Organization (WHO) for their help and for supporting the initial phase of this work through the MENA HIV/AIDS Epidemiology Synthesis Project. The statements made herein are solely the responsibility of the authors."