1. Central Veterinary Research Institute, P.O. Box 33980, Balmoral, Lusaka, Zambia (stanleynyirenda@yahoo.co.uk; henrylombekangwa@yahoo.com)
2. Department of Microbiology and Parasitology, Sokoine University of Agriculture, Box 3019, Morogoro, Tanzania
3. Department of Clinical Microbiology, The University of Zambia, P.O. Box 32379, Lusaka, Zambia (mudenda68@yahoo.com; ntongo2004@yahoo.co.uk; ladslavm@yahoo.com),
4. Pest Management Centre Sokoine University of Agriculture, P.O. Box 3010, Morogoro, Tanzania (bskilonzo@yahoo.com)