"They test my blood to know how much blood is in my body": the untapped potential of promoting viral load literacy to support adherence and viral suppression among adolescents living with HIV.

Introduction: Achieving sustained HIV viral suppression is a key strategy to optimize the health and wellbeing of those living with HIV. Sub-optimal adherence to antiretroviral therapy (ART) in adolescents and young people living with HIV (AYPLHIV) in Southern Africa, due to a range of social and contextual factors, including poor mental health, has presented a substantial challenge to meeting targets aimed towards improving treatment outcomes and reducing transmission. With the increasing availability of viral load (VL) testing in Southern Africa, there is an opportunity to better understand the relationship between VL literacy, wellbeing and adherence among adolescents.