implement a comprehensive package of interventions to meet the needs of vulnerable populations. Each country should identify populations vulnerable to HIV or underserved by current HIV programmes in both generalized and concentrated epidemics. The needs of young people and women should explicitly be addressed in national HIV responses. Particular attention should be given to expanding comprehensive combination HIV prevention programmes in communities with generalized epidemics. Policy-makers and programme managers should also consider the needs of migrant workers, refugees or displaced populations, street children, indigenous people, disabled people, prisoners, most-at-risk youth and people older than 50 years of age. Considerations of.