Affiliation: | 1. UNDP/FAO, Animal Disease Control Project , P.O. Box 30563, Lusaka, Zambia;2. Department of Tropical Veterinary Medicine and Protozoology, Faculty of Veterinary Medicine , State University of Utrecht , P.O. Box 80.172, Utrecht, 3508 TD, The Netherlands;3. Animal Disease Control Project , UNDP/FAO , P.O. Box 30563, Lusaka, Zambia;4. International Atomic Energy Agency , Vienna, Austria;5. Department of Tropical Veterinary Medicine and Protozoology , State University of Utrecht , P.O. Box 80.172, Utrecht, 3508 TD, The Netherlands;6. Department of Experimental Zoology , State University of Utrecht , Padualaan 8, Utrecht, 3584 CH, The Netherlands;7. District Veterinary Officer, P.O. Box 910034, Mongu, Western Province, Zambia |