The number of people receiving combination antiretroviral therapy (ART) for HIV/AIDS in developing countries is increasing significantly – more than doubling from 400 000 in December 2003 to approximately one million in June 2005 – according to a new report released today by the World Health Organization (WHO) and the Joint United Nations Programme on HIV/AIDS (UNAIDS). However, access to HIV treatment continues to fall short of the growing need, and overall progress is unlikely to be fast enough to reach the target set by WHO and UNAIDS of treating three million people by the end of 2005.