Her research interests include HIV testing and linkage to HIV and TB care in Durban, South Africa. She is examining predictors of failure to link to care following a new HIV diagnosis to design interventions to improve the high rates of mortality and loss to follow-up observed in South Africa. She has recently completed a multi-site randomized trial to assess the efficacy and cost of a health system navigator to improve rates of entry into HIV care and tuberculosis treatment completion. She is currently evaluating the clinical impact of GeneXpert MTB/RIF screening on community-based mobile HIV testing units in Durban.