1. Department of Virology, College of Medicine, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria
2. Department of Microbiology, Faculty of Science, Ekiti State University, Ado-Ekiti, Nigeria
3. Department of Medical Microbiology and Parasitology, Obafemi Awolowo University, Ile-Ife, Nigeria
4. Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
5. Viral Vaccines Production Division, National Veterinary Research Institute, Vom, Plateau State, Nigeria
6. Institute of Child Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
7. Department of Medical Laboratory Sciences, Faculty of Health Sciences and Technology, University of Nigeria, Nsukka, Nigeria
8. WHO National Polio Laboratory, University of Ibadan, Ibadan, Nigeria