serologic survey of slaughter-age ostriches (struthio camelus) for antibodies to selected avian pathogens.serum samples from 163 slaughter-age ostriches (struthio camelus) in ohio and indiana were tested for antibodies to avian influenza virus (aiv), newcastle disease virus (ndv), paramyxovirus (pmv) 2, pmv3, pmv7, infectious bursal disease virus (ibdv), bordetella avium, mycoplasma synoviae, mycoplasma gallisepticum, ornithobacterium rhinotracheale, salmonella pullorum, salmonella gallinarum, and salmonella typhimurium. one ostrich had antibodies to aiv h5n9, 57% of the ostriches had antibodies to ...200011195659
characteristics and serologic studies of two serotypes of infectious bursal disease virus in turkeys.two serotypes of infectious bursal disease virus (ibdv) were distinguished using the virus-neutralization test. an ibdv isolate from chickens, two commercial ibdv vaccine viruses, and an ibdv isolate from turkeys were designated serotype i. two ibdv isolates from turkeys were designated serotype ii. a common antigen shared by serotype i and serotype ii viruses was detected using an indirect immunofluorescent assay. the virions of both ibdv serotypes were determined to be nonenveloped icosahedron ...19826297451
diversity of genome segment b from infectious bursal disease viruses in the united states.several phylogenetic lineages of the infectious bursal disease virus (ibdv) genome segment b have been identified. although this genome segment has been shown to contribute to virulence, little is known about the genetic lineages that exist in the united states. the nucleotide genome segment b sequences of 67 ibdv strains collected from 2002 to 2011 in the united states were examined. although they were from nine different states, a majority (47) of these viruses were from california. a 722-base ...201222545543
molecular evidence for a geographically restricted population of infectious bursal disease viruses.a population of infectious bursal disease virus (ibdv) in northeast ohio that appears to be geographically restricted was identified. thirteen broiler farms containing a total of 36 houses were examined for the presence of ibdv. twenty-four of the 36 houses were positive for ibdv, and of those viruses, 15 viruses from six different broiler farms formed a unique phylogenetic group. nucleotide sequence analysis identified glutamic acid (e) at position 253 in all 15 viruses. only one other virus in ...201323678730
prevalence of antibodies to infectious bursal disease virus serotypes i and ii in 75 ohio chicken flocks.serum samples from 75 ohio layer flocks were tested for antibodies to infectious bursal disease virus (ibdv) serotypes i and ii using a virus-neutralization test. infectious bursal disease had been diagnosed in three of the 75 flocks. antibody titers to serotype i were detected in 77% of the flocks, and antibody titers to serotype ii were detected in 47% of the flocks. of the eight flocks known to have been vaccinated using a serotype i ibdv vaccine, all had antibody titers to serotype i, and fo ...19836314983
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