Document Type : Original Article
Authors
1 1. Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt.
2 2. Department of Bacteriology, Animal Health Research Institute, El-Fayoum Laboratory, Agricultural Research Center, Egypt.
3 3. Directorate of Veterinary Medicine, Fayoum, Egypt.
Abstract
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