1. Department of Brucellosis Research Animal Health Research InstituteAgricultural Research Center Giza Egypt
2. Department of Zoonoses General Organization for Veterinary Services (GOVS) Giza Egypt
3. Produce Safety and Microbiology Research Unit Agricultural Research Service Western Regional Research CenterU.S. Department of Agriculture Albany CA USA
4. Zewail City of Science and Technology University of Science and Technology Giza Egypt
5. Department of Bacteriology, Mycology and Immunology Faculty of Veterinary Medicine Mansoura University Mansoura Egypt