Document Type : Original Article
Authors
1 Department of Poultry and Rabbit Diseases, Faculty of Veterinary Medicine, Cairo University 2
2 Department of Virology, Faculty of Veterinary Medicine, Beni-Suef University Beni Suef 62511, Egypt
3 Department of Poultry and Rabbit Diseases, Faculty of Veterinary Medicine, Beni-Suef University Beni Suef 62511, Egypt
4 Veterinarian at the Veterinary Farm, Faculty of Veterinary Medicine, Beni-Suef University Beni Suef 62511, Egypt
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