RISK ASSESSMENT FOR EXPERIMENTAL WASTE CONDEMNATION FROM CHICKEN CHALLENGED WITH VARIANT IB VIRAL STRAIN.

Infectious bronchitis virus is an acute and economically important viral disease of chickens. IB is a member of Coronaviridae family it, is an acute disease of respiratory and urogenital tract of chickens. Some IBV strains can cause acute nephritis and urolethiasis associated with high mortality rate in chickens; considering (IBV) which can affect avian and represent a risk for public health, classified as risk group 2. This study, take place in isolators to detect of experimental waste condemnation after challenge variant lB strain in 3 weeks specific pathogen free vaccinated birds and non-vaccinated control. Samples (kidneys and lungs) were collected for detection of pathological changes. No Histopathological lesions were observed, nor virus were detected following challenge. This work was designed to apply biosecurity and biosafety parameter which including biological waste decontamination and disinfection in order to judge about any residual living virus after challenge test. [ABSTRACT FROM AUTHOR]

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