1. Discipline of Pharmaceutical Sciences, School of Health Science, University of KwaZulu-Natal , Durban , South Africa
2. Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre , Montreal, Quebec , Canada
3. Africa Health Research Institute , Durban , South Africa
4. School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal , Durban , South Africa
5. UCL Centre for Clinical Microbiology, Division of Infection and Immunity, University College London , London , United Kingdom
6. Faculty of Applied Science, Eduvos , Midrand , South Africa
7. Department of Psychiatry, University of KwaZulu-Natal , Durban , South Africa