1. Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
2. Department of Anatomy, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria
3. Institute of Novel and Emerging Infectious Disease, Friedrich Loeffler Institute, Isle of Riems, Germany
4. Department of Experimental Animal Facilities and Biorisk Management, Friedrich Loeffler Institute, Isle of Riems, Germany
5. Institute of Veterinary-Pathology, Faculty of Veterinary Medicine, Leipzig University, Leipzig, Germany