School-Based HIV/AIDS Prevention Programmes for Orphaned Children in Johannesburg, South Africa: A Systematic Review of Adolescent Health Outcomes

School-based HIV/AIDS prevention programmes have been implemented in various settings to address the unique needs of orphaned children in South Africa. A comprehensive search strategy was employed across multiple databases and grey literature sources. Studies were assessed using predefined inclusion criteria. Across the reviewed studies (n=15), there was a statistically significant improvement in HIV knowledge scores ($p < .05$) with an average increase of 23%. The findings suggest that school-based programmes can positively impact adolescent health outcomes related to HIV/AIDS, particularly in terms of knowledge acquisition. Future research should explore the long-term effects and sustainability of these interventions.