Based on a series of ethnographic studies conducted since 1982 in the Western US & Rio de Janeiro, Brazil, described are adaptational & survival strategies of homeless youth & implications for AIDS (acquired immune deficiency syndrome) prevention. The results of this research suggest that a critical relationship exists between survival strategies of street youth & the AIDS pandemic. The impact of this pandemic on these youth can be mitigated only by immediate & comprehensive preventive actions at both national & international levels. 14 References. Adapted from the source document.