D. K. Byarugaba
Department of Veterinary Microbiology and Parasitology, Faculty of Veterinary Medicine, Makerere University, P.O. Box 7062, Kampala, Uganda
U. M. Minga
The Open University of Tanzania, P.O. Box 23409, Dar Es Salaam, Tanzania
P. S. Gwakisa
Department of Veterinary Microbiology and Parasitology, Faculty of Veterinary Medicine, Sokoine University of Agriculture, P.O.Box 3015, Chu Kikuu Morogoro, Tanzania
E. Katunguka-Rwakishaya
Makerere University Graduate School, Makerere University, P.O.Box 7062, Kampala, Uganda
M. Bisgaard, J. E. Olsen
Department of Veterinary Pathobiology, The Royal veterinary and Agricultural University, Stigbolen-4, DK-1870 Frederiksberg C, Denmark