University of Zambia, School of Veterinary Medicine, Box 32379, Lusaka 10101, Zambia;
Zambia Wildlife Authority ZAWA, Private Bag 1, Chilanga, Zambia;
University of Zambia, School of Veterinary Medicine, Box 32379, Lusaka 10101, Zambia;
University of Zambia, School of Veterinary Medicine, Box 32379, Lusaka 10101, Zambia;
National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan;