?url_ver=Z39.88-2004&rft_id=10.36380%2Fjwpr.2021.26&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S.+E.&rft.aulast=Omar&rft.au=Omar%2C+S.+E.&rft.title=Journal+of+World's+Poultry+Research&rft.volume=11&rft.issn=2322455X+(ISSN)&rft.atitle=Genetic+Evolution+of+Infectious+Bursal+Disease+Virus+Isolated+from+Chicken+Poultry+Flocks+in+Egypt&rft.pages=215-222&rft.date=25+June+2021&rft.issue=2&rft.genre=article