J. N. Abenga1* and I. A. Lawal2
1Pathology, Epidemiology and Statistics Division, Nigerian Institute for Trypanosomiasis Research, Private Mail Bag, 2077, Kaduna, Nigeria.
2Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, Ahmadu Bello University, Samaru, Zaria, Nigeria.
