Document Type : Original Article
Authors
1 Department of Hygiene and Preventive Medicine (Zoonoses), Faculty of Veterinary Medicine, Kafrelsheikh University, Egypt
2 Animal Health Research Institute, National Laboratory for Quality Control of Poultry Production, Giza, Dokki, Egypt
3 General Organization for Veterinary Services, Undersecretary of Preventive Medicine, Department of Epidemiology, Giza, Dokki, Egypt
Abstract
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