Article
A Very Virulent Genotype of Infectious Bursal Disease Virus Predominantly Associated with Recurrent Infectious Bursal Disease Outbreaks in Tunisian Vaccinated Flocks
1 Dec 2004
Abstract excerpt
Outbreaks of infectious bursal disease (IBD) still continue to afflict the Tunisian poultry industry even in those flocks where the vaccination program is strictly applied. To characterize the viruses that circumvent protection provided by vaccination, field isolates of infectious bursal disease virus (IBDV) obtained from vaccinated flocks that have repeatedly experienced IBDV outbreak episodes were analyzed from...
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