Document Type : Original Article
Authors
1 Bacteriology, Immunology and Mycology Dep., Fac. Vet. Med. Banha Univ.
2 virology Dep., Fac. Vet. Med. Banha Univ
3 Microbiology, Botany Dep., Fac. Science. Zagazig Univ.
4 Vet. Fac. Vet. Med. Banha Univ
Abstract
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