Lack of pathogenicity of five serotype 2 infectious bursal disease viruses in chickens |
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| Authors: | N M Ismail Y M Saif P D Moorhead |
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| Institution: | Ohio Agricultural Research and Development Center, Ohio State University, Wooster 44691. |
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| Abstract: | The pathogenic potential of five strains of serotype 2 infectious bursal disease virus (IBDV) for specific-pathogen-free chickens was examined. There were no gross or microscopic lesions in the inoculated chickens. Bursa-to-body-weight ratios of IBDV-infected chickens were not significantly different from those of uninfected controls. Virus-neutralizing antibodies to IBDV of serotype 2, but not serotype 1, were detected in infected chickens. This study indicated that the serotype 2 viruses examined were infectious but not pathogenic in chickens. |
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