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Received May 17, 2017; Revised Aug 7, 2017; Accepted Aug 28, 2017
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
1. Introduction
Infectious bursal disease (IBD) is a disease of high economic importance that is highly contagious and immunosuppressive affecting young chickens especially between 3 and 6 weeks of age. The etiologic agent, IBD virus (IBDV), is a naked icosahedral virus having segmented double stranded RNA genome belonging to the genus