sequence comparisons of the variable vp2 region of eight infectious bursal disease virus isolates.the vp2 gene is part of the genomic segment a of infectious bursal disease virus (ibdv). it has been identified as the major host-protective antigen of ibdv and is known to contain conformationally dependent protective epitopes. a 643-base pair segment covering the hypervariable region of this gene from three recent serologic variant ibdv isolates from the southeastern united states, two variants from the delmarva peninsula, and three serologic standard viruses were amplified and sequenced using ...19979087318
antigenic and molecular characterization of three infectious bursal disease virus field isolates.three infectious bursal disease field viruses, identified as u28, 3212, and miss and isolated in the early 1980s from the southeastern united states, were characterized both antigenically and genotypically. a panel of monoclonal antibodies (mabs) was utilized in an antigen-capture enzyme-linked immunosorbent assay (elisa) for antigenic characterization. the elisa data indicated that u28 and the delaware variants are antigenically related. the 3212 and the gls variants were more closely related a ...199910396632
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