Attrition Rates in HIV Viral Load Monitoring and Factors Associated With Overdue Testing Among Children Within South Africa’s Antiretroviral Treatment Program: Retrospective Descriptive Analysis

Ahmad Haeri Mazanderani   ^{1, 2, 3} , MBChB, MMed, PhD ;   Lebohang Radebe   ^{1, 3} , BSc (Hons), MSc ;   Gayle G Sherman   ^{1, 2, 3} , MBBCh, MMed, PhD

¹ Centre for HIV & STIs, National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa

² Department of Paediatrics & Child Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa

³ Paediatric HIV Diagnostics Division, Wits Health Consortium, University of the Witwatersrand, Johannesburg, South Africa