1. Fevers Unit, Department of Medicine, Korle Bu Teaching Hospital, Accra, Ghana
2. School of Biomedical and Allied Health Sciences, University of Ghana, Accra, Ghana
3. School of Public Health, University of Ghana, Accra, Ghana
4. Ensign College of Public Health, Kpong, Ghana
5. School of Medicine and Dentistry, University of Ghana, Accra, Ghana