Infectious Bursal Disease Recognized A Syndrome Essay

Epidemiology Infectious bursal disease recognized a syndrome, later termed Avian nephrosis on broiler farm near the community of Gumboro Delaware U.S.A. Avian nephrosis or Gumboro disease characterized by acute morbidity and mortality (Cosgrove and Lasher., 1957). IBD rapidly spread from farm to farm (Edgar and Cho., 1961). Early workers were also confused by simultaneous infection with a typical corona virus in flock affected by the infectious bursal disease agent (Winter field and Hitchner., 1962). The prevalence of clinical IBD was reduced following the introduction of live vaccines from 1966 onwards (Edgar and Cho., 1965). The syndrome Infection bursal disease has been designated for the first time instead of Gumboro Disease when describing specific pathogenic lesion in the cloacal bursa (Hitchner., 1970). IBDV infection at early were immunosuppressive. Additional protection was provided to broilers and commercial pullets when inactivated emulsified vaccines were administered to parent flock to increase transfer of maternal antibodies to progeny (Allan et al., 1972). Control of IBD viral infection has been complicated by the recognition of variant strains of serotype I of IBDV that were found in Delmarva poultry producing area (Rosenberger et al., 1985). Variant strains as breaking through maternal immunity against standard strains and also differs fromShow MoreRelatedInfectious Bursal Disease Recognized A Syndrome Essay2028 Words   |  9 Pages Infectious bursal disease recognized a syndrome, later termed Avian nephrosis on broiler farm near the community of Gumboro Delaware U.S.A. Avian nephrosis or Gumboro disease characterized by acute morbidity and mortality (Cosgrove and Lasher., 1957). IBD rapidly spread from farm to farm (Edgar and Cho., 1961). Early workers were also confused by simultaneous infection with a typical corona virus in flock affected by the infectious bursal disease agent (Winter