Keywords: Adolescents (13-19 years), Adults (20-59 years), Behaviour Modification (e.g., provision of item/tool, incentives, goal setting), Clinic, Communicable Disease/Infection, Community, Education / Awareness & Skill Development / Training, Health Care Setting, Home, Hospital, Internet, Primary health care provider office (e.g., Public health nurse, dietitian, social worker), School, Screening, Sexual Health (e.g., pregnancy prevention, family planning, sexual behaviour), Sexually Transmitted Infections (STIs), Social Support (e.g., counseling, case management, outreach programs)