1. Medical Microbiology and Parasitology Department, University College Hospital, Ibadan, Nigeria
2. Pediatrics Department, Ekiti State University Teaching Hospital, Ado Ekiti, Nigeria
3. Medical Laboratory Department, State Specialist Hospital, Ijero Ekiti, Nigeria
4. Medical Laboratory Department, St Mary’s Catholic General Hospital, Ibadan, Nigeria
5. Chemical Pathology Department, University College Hospital, Ibadan, Nigeria
6. Medical Microbiology and Parasitology Department, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria