WHO library cataloguing-in-publicatin data. Preventing HIV/AIDS in young people: a systematic review of the evidence from developing countries; UNAIDS interagency task team on HIV and young people/editors: David Ross, Bruce Dick, Jane Ferguson. Table of contents:1.Introduction and rationale 2.Yong people: the centre of HIV epidemic 3.Overview of effective and promising interventions to prevent HIV infection 4.The weight of evidence: a method for assessing the strength of evidence on the effectiveness of HIV prevention interventions among young people 5.the effectiveness of sex education and HIV education interventions in schools in developing countries 6. Review of the evidence for interventions to increase young people's use of health services in developing countries 7.The effectiveness of mass media in changing HIV/AIDS related behaviour among young people in developing countries 8.The effectiveness of community interventions targeting HIV and AIDS prevention at young people in developing countries 9.Achieving the global goals on HIV among young people most at risk in developing countries: young sex works, infecting drug users and men who have sex with men.