1. Department of Veterinary Services, Ministry of Agriculture, Port Harcourt, Nigeria
2. Department of Veterinary Services, Ministry of Agriculture and Natural Resources, Abakaliki, Ebonyi, Nigeria
3. Regional Disease Surveillance Systems Enhancement Project, Ministry of Agriculture, Uyo, Nigeria
4. Department of Veterinary and Pest Control Services, Federal Ministry of Agriculture and Food Sufficiency, Uyo, Nigeria,