Sexually active adolescents between the ages of 10 and 19 are at extremely high risk for sexually transmitted diseases (STD), including HIV, and teen pregnancy.The overall goal of this research program is to develop, implement and evaluate integrated multi-level interventions to prevent STD, including HIV, and pregnancy among adolescents. The study includes 12 high schools and 19 of their feeder middle schools in the Los Angeles Unified School District and the surrounding communities. Interventions will be implemented among parents, health care providers, and in schools in an integrated fashion with the goal of improving social context factors related to health outcomes among adolescents. The evaluation phase will include in-school surveys with adolescents at all middle schools