Following an incubation period of usually a few days (but rarely up to 21 days), depending upon the characteristics of the isolate, the dose of inoculum, the species, and age of the bird, the clinical presentation of avian influenza in birds is variable and symptoms are fairly unspeciÞc (Elbers 2005). Therefore, a diagnosis solely based on the clinical presentation is impossible.

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  • The meningo-polioencephalomyelitis The nonsuppurative meningo-polioencephalomyelitis Investigations were made on 24 dead piglets after the specific neurological signs for Teschen disease, the porcine enterovirus tipe 1 being isolated from some of patients in the specialized laboratories. Pathological matter…




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  • Abstract: The study in this thesis was a trial to evaluate the: "serological response of broiler chickens to Avian Influenza Virus common commercial vaccines which are currently used in Egypt, (the Chinese Vaccine, H5N1 and…




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