It is estimated that by the end of 2003 there were just under 38 million people living with HIV/AIDS, with all but two million of these people of working age. This report, prepared by the ILO Programme on HIV/AIDS and the World of Work, sets out global estimates of the impact of HIV/AIDS on the labour force and the working age population in 50 countries in Africa, Asia, Latin America and the Caribbean and in more developed regions. Issues discussed include: the implications for the private and public sectors, on agriculture and concerns for food insecurity and on the informal economy; on women and children; policy implications and examples of responses to the problem in a variety of workplace settings; provision of antiretroviral therapy in conjunction with HIV prevention in the workplace and the potential for expanded access to workplace-based treatment.