1. Centre for Infectious Diseases and Biotechnology, Tanzania Veterinary Laboratory Agency, Dar es Salaam, Tanzania
2. Animal Production and Health Laboratory, Animal Production and Health Section, Joint FAO/IAEA Division, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
3. Depertment of Animal Medicine, Production and Health, University of Padova, Padua, Italy
4. Central Veterinary Laboratory (CVL), Windhoek, Namibia