1. Department of Microbiology, Immunology and Veterinary Public Health, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia.
2. Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
3. Technology and Food Science Unit, Flanders Research Institute for Agriculture, Fisheries and Food, Melle, Belgium.
4. Food Animal Environmental Systems Research Unit, Agricultural Research Service, U. S. Department of Agriculture, Bowling Green, Kentucky, USA.
5. Department of Animal Health, Alage Agricultural Technical Vocational and Educational Training College, Alage, Ethiopia.
6. Department of Internal Medicine, Bishoftu Hospital, Bishoftu, Ethiopia.
7. Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, Long Island University, Greenvale, New York, USA.
8. Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
9. Department of Microbiology and Infection Control, Belgian National Reference Centre for STEC/VTEC, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium.