نتایج جستجو برای: infectious bursal disease vaccine
تعداد نتایج: 1619595 فیلتر نتایج به سال:
An outbreak of inclusion body hepatitis was noticed in 20% of the population of a flock of 20000 broiler chickens. The affected 14-day-old birds experienced 10% mortality during a period of one week. On 39 and 44 days of age, clinical infectious bursal disease and Newcastle disease with 5% and 15% mortalities occurred in the flock, respectively. Clinical signs of affected birds included depress...
Pathological and immunological study of an in ovo complex vaccine against infectious bursal disease.
The appearance of very virulent strains of infectious bursal disease (IBD) virus at the end of the 1980s made it necessary to develop more effective immunization procedures. To facilitate this, the immunogenicity and the immunosuppressive effect of a mild (G-87), an intermediate (LIBD) and an intermediate-plus (IBDV 2512) IBDV strain were tested after the in ovo inoculation of 18-day-old SPF an...
Here, we report the complete coding genome sequence of a novel reassortant and very virulent infectious bursal disease virus (IBDV), designated JBN2011. Characterization of the JBN2011 genome suggests that it is a rare recombinant virus having a very virulent IBDV segment A and a Bursine-2-like attenuated IBDV segment B.
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