Sequence and phylogenetic analysis of the VP2 gene of very virulent infectious bursal disease virus isolates
Previously we have shown that very virulent infectious bursal disease viruses (vvIBDV) that are Ssp I, Taq I and Sty I positive (92/04, 97/61 and 94/B551) but not Ssp I and Taq I positive and Sty I negative (94/273) cause high mortality, up to 80% in specific-pathogen-free chickens with significant...
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Taylor & Francis
2002
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