1. Public Health and Epidemiology Department, Nigerian Institute of Medical Research, Yaba Lagos 101245, Nigeria
2. Parasitology and Epidemiology Unit, Department of Animal and Environmental Biology, Federal University Oye-Ekiti, Oye-Ekiti 371104, Nigeria
3. Mission to Save the Helpless, Jos 930001, Nigeria
4. Department of Biological Sciences, Federal University Dutse, Dutse 720223, Nigeria
5. Department of Biochemistry, Ahmadu Bello University, Zaria 810107, Nigeria
6. Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA