1. Dermatology and Venereology Section, Adult Hospital of the University Teaching Hospitals, University of Zambia School of Medicine, Lusaka, Zambia.
2. Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia.
3. Ocean Road Cancer Institute, Academic and Research Unit, Dar es Salaam, Tanzania.
4. Muhimbili University of Health and Allied Sciences, Clinical Oncology Department, Dar es Salaam, Tanzania.
5. Nebraska Center for Virology, Lincoln, Nebraska, USA.
6. School of Biological Sciences, and University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
7. Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.