Area of research
Infectious Diseases · Virology
Research interest
Research interests include HIV/AIDS Research and Interventions, HIV Research and Treatment, HIV/AIDS drug development and treatment, and Tuberculosis Research and Epidemiology.
Retrospective analysis of CD4 trends at district levels in South Africa between 2013 and 2023.
Use of the novel PanLeucogated CD4 test has saved over 600 million USD for South Africa’s HIV treatment programme: A 20-year retrospective costing analysis (2004 to 2024)
The impact of a CD4 tiered service model on interlaboratory referral distances in South Africa.
Reflex Xpert MTB/XDR Testing of Residual Rifampicin-Resistant Specimens: A Clinical Laboratory-Based Diagnostic Accuracy and Feasibility Study in South Africa
Economic impact of extending reflexed cryptococcal antigenaemia CD4 threshold in South Africa.
Retrospective analysis of CD4 count trends in South Africa.
More Than a Decade of GeneXpert® Mycobacterium tuberculosis/Rifampicin (Ultra) Testing in South Africa: Laboratory Insights from Twenty-Three Million Tests
Painless Capillary Blood Collection: A Rapid Evaluation of the Onflow Device.
Feasibility, Ease-of-Use, and Operational Characteristics of World Health Organization-Recommended Moderate-Complexity Automated Nucleic Acid Amplification Tests for the Detection of Tuberculosis and Resistance to Rifampicin and Isoniazid.
Tuberculosis testing patterns in South Africa to identify groups that would benefit from increased investigation
Cross-municipality migration and spread of tuberculosis in South Africa.
How South Africa Used National Cycle Threshold (Ct) Values to Continuously Monitor SARS-CoV-2 Laboratory Test Quality.
Integrating Molecular Diagnostics and GIS Mapping: A Multidisciplinary Approach to Understanding Tuberculosis Disease Dynamics in South Africa Using Xpert MTB/RIF
Co-testing a single sputum specimen for TB and SARS-CoV-2.
National Impact of SARS-CoV-2 Infection on HIV Virological Suppression in South Africa.
Performance Evaluation of Four Qualitative RT-PCR Assays for the Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2).
Assessing very advanced HIV disease in adolescent girls and young women.
Assessing the cost and utilization of SMS printers by primary health care facilities: lessons learned from South Africa.
The fall -- and rise -- in hospital-based care for people with HIV in South Africa: 2004-2017
Storage of <i>Mycobacterium tuberculosis</i> culture isolates in Microbank<sup>TM</sup> beads at a South African laboratory.
Early assessment of the clinical severity of the SARS-CoV-2 omicron variant in South Africa: a data linkage study.
Emergence of SARS-CoV-2 Omicron lineages BA.4 and BA.5 in South Africa
Emergence of SARS-CoV-2 Omicron lineages BA.4 and BA.5 in South Africa.
Clinical severity of SARS-CoV-2 Omicron BA.4 and BA.5 lineages compared to BA.1 and Delta in South Africa.
The performance of using dried blood spot specimens for HIV-1 viral load testing: A systematic review and meta-analysis.
Cohort profile: the South African National Health Laboratory Service (NHLS) National HIV Cohort
Cohort profile: the South African National Health Laboratory Service (NHLS) National HIV Cohort.
Long-term HIV treatment outcomes and associated factors in sub-Saharan Africa: multicountry longitudinal cohort analysis.
Implementation of an mHealth App to Promote Engagement During HIV Care and Viral Load Suppression in Johannesburg, South Africa (iThemba Life): Pilot Technical Feasibility and Acceptability Study.
Continued Emergence and Evolution of Omicron in South Africa: New BA.4 and BA.5 lineages