1. Department of Biochemistry, University of Johannesburg, Auckland Park, South Africa
2. Biotechnology Platform, Agricultural Research Council, Onderstepoort, South Africa
3. Bacteriology Division, Agricultural Research Council, Onderstepoort Veterinary Research, Onderstepoort, South Africa
4. Directorate of Veterinary Public Health, Department of Agriculture, Land Reform and Rural Development, Pretoria, South Africa
5. Centre for Bioinformatics and Computational Biology, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa