Novel Infectious Burasal Disease Virus And Vaccine Containing Said Virus
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United States of America Patent
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Issued Date -
Apr 24, 2008
app pub date -
Sep 7, 2004
filing date -
Mar 31, 2004
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Abandoned
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Abstract
Novel infectious bursal disease (IBD) virus not protectable by the conventional IBD vaccines was isolated and a novel vaccine efficacious to said virus is provided. Novel IBD virus TY2 strain was isolated and its passage strains were obtained. TY2 strain has a distinct genetic type from those of the known IBD viral strains wherein a hypervariable region in VP2, a major host protective antigenic region of said virus, is cleaved with neither TaqI nor SspI but cleaved with MvaI into fragments of about 52 bp and about 422 bp. TY2 strain or the passage strain of said virus allows for production of an excellent vaccine to IBD.
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