1. Department of Science and Technology–National Research Foundation Centre of Excellence for Biomedical Tuberculosis Research/South African Medical Research Council Centre for TB Research/Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town 8000, South Africa
2. Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, 300 W Drake Rd., Fort Collins, Colorado 80523, USA
3. Veterinary Wildlife Services, South African National Parks, Kruger National Park, Private Bag X402, Skukuza 1350, South Africa