1. Faculty of Science, Department of Chemistry University of Botswana Gaborone Botswana
2. Botswana–University of Pennsylvania Partnership Gaborone Botswana
3. Division of Infectious Diseases, Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
4. Department of Biomedical Sciences, Faculty of Medicine University of Botswana Gaborone Botswana
5. School of Pharmacy, Faculty of Health Science University of Botswana Gaborone Botswana