This report systematizes existing knowledge of effective interventions in the area of juvenile sexual and reproductive health.

Background: Accessible sexual, reproductive, and mental healthcare services are crucial for adolescent health and wellbeing.

Nearly half of the world's population, some 3 billion people, is under the age of 25.

Objectives: To describe the sexual and reproductive behaviour of adolescents in sub-Saharan Africa, particularly 15- to 19-year-olds.

Despite decades of investment in HIV prevention, a large and vulnerable population—that of adolescent girls—remains invisible, underserved, and at disproportionate risk of HIV.

Providing sexual and reproductive health (SRH) education in schools is a cost-effective way of reaching young people because the majority of adolescents are enrolled in school.

The number of young people with perinatally acquired HIV is growing significantly. With antiretroviral drugs, children who get infected at birth with HIV have an opportunity to graduate into adolescence and adulthood.

This systematic review looks at levels of STI awareness, knowledge and perceived risk of school-going adolescents in Europe. Fifteen studies were included, all of which cross-sectional and conducted among 13 to 20 year olds. Awareness and knowledge varied depending on gender.

In July 2011, UNFPA, UNESCO and UNICEF jointly organised the Asia Pacific Regional Consultation on Sexuality Education and Gender, with a Special Focus on Adolescent Girls.

This rapid assessment was undertaken from August to November 2010 and included within that period research, interviews and report writing. The goal of the assessment was to assess and document: 1.