HIV Epidemics in the European Region: Vulnerability and Response provides a systematic review of the evidence on HIV vulnerability and response in all 53 countries of the World Health Organization's (WHO's) European Region, stretching from Iceland to the borders of China. The report focuses on key populations most at risk of HIV infection: people who inject drugs, sex workers, and men who have sex with men. It confirms that these populations are disproportionately affected by the growing H...