Validation of a National Pediatric HIV Risk Screening Tool at 31 Health Facilities in Zambia: Diagnostic Performance and Programmatic Implications, 2021-2022.
BACKGROUND To improve testing efficiency, Zambia introduced a national pediatric human immunodeficiency virus (HIV) Risk Screening Tool (HRST) in 2019. However, concerns about its sensitivity led to its suspension in 2021 pending formal evaluation. We therefore undertook a formal validation of this tool to assess its d...