Results 211 to 220 of about 100,788 (246)

Experimental Infection of Turkeys with Infectious Bursal Disease Virus

Avian Diseases, 1978
Commercial turkey poults 3 to 6 weeks old were infected experimentally by eyedrop with an infectious bursal disease virus (IBDV) inoculum obtained from chickens experiencing clinical IBD. The IBDV was passed 6 successive times in poults in an attempt to increase its pathogenicity for turkeys.
R. K. Page, Eidson Ce, O. J. Fletcher, P. D. Lukert, Joseph J. Giambrone   +4 more
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The Immunodepressive Effect of Infectious Bursal Disease Virus in Chickens

Avian Diseases, 1974
SUMMARY Infectious bursal disease virus (IBVD) depressed the humoral antibody response of chickens to various vaccines. The virus had that effect whether injected at the same time as vaccination or 4 or 7 days before. The depression was slightly greater when injection was 7 days before, and was most pronounced in chickens inoculated with IBDV when 6 ...
S. Shimakura, F Taguchi, Katsuya Hirai, S T Kim, C N Chang, Y Iritani, E. Kawamoto   +6 more
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Infectious bursal disease virus of chickens: pathogenesis and immunosuppression

Developmental & Comparative Immunology, 2000
Infectious bursal disease virus (IBDV) is an important immunosuppressive virus of chickens. The virus is ubiquitous and, under natural conditions, chickens acquire infection by the oral route. IgM+ cells serve as targets for the virus. The most extensive virus replication takes place in the bursa of Fabricius.
In Jeong Kim, H. Y. Yeh, Silke Rautenschlein, Jagdev M. Sharma   +3 more
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Characterization of Immunosuppression in Chickens by Infectious Bursal Disease Virus

Avian Diseases, 1979
Chickens were infected with infectious bursal disease (IBD) virus in ovo or at different times posthatching to 6 weeks of age. The B- and T-cell responses in the lymphoid tissues and blood were examined sequentially to 8 weeks of age by using indirect immunofluorescence.
S. Shimakura, K. Kunihiro, Katsuya Hirai
openaire   +3 more sources

Replication of infectious bursal disease virus in lymphoid cells

Archives of Virology, 1986
Replication of infectious bursal disease virus in lymphoid cells from the bursa of Fabricius occurs preferentially in a population of proliferating cells characterized by increased thymidine incorporation and by blast cell formation. This was demonstrated by enrichment of virus producing cells in gradients of bovine serum albumin and by mitogenic ...
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Genetic reassortment of infectious bursal disease virus in nature

Biochemical and Biophysical Research Communications, 2006
Infectious bursal disease virus (IBDV), a double-stranded RNA virus, is a member of the Birnaviridae family. Four pathotypes of IBDV, attenuated, virulent, antigenic variant, and very virulent (vvIBDV), have been identified. We isolated and characterized the genomic reassortant IBDV strain ZJ2000 from severe field outbreaks in commercial flocks.
Jiangtao Zheng, Hong Xu, Lian Yu, Jianrong Li, Yongwei Wei, Long Li   +5 more
openaire   +3 more sources

Infectious Bursal Disease Virus (Birnaviridae)

Encyclopedia of Virology, 2021
D. Jackwood
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Reassortant infectious bursal disease virus isolated in China

Virus Research, 2008
Infectious bursal disease virus (IBDV) is a bi-segmented, double-stranded RNA virus which belongs to the genus Avibirnavirus of the family Birnavirideae. In this study, we determined the complete nucleotide sequences of a reassortment IBDV strain TL2004 with segments A and B derived from attenuated and very virulent strains of IBDV.
Wuying Chu, Lian Yu, Jiangtao Zheng, Xiameng Yu, Yongwei Wei, Hong Xu, Xuping Yu   +6 more
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Isolation of infectious bursal disease virus from Turkeys

Avian Pathology, 1979
A virus, which is morphologically identical and antigenically related to two previously known isolates of infectious bursal disease (IBD) virus, was isolated from pooled faeces of 6-week-old turkeys with diarrhoea. It is concluded that this virus, designated TY89, is an isolate of IBD virus.
J. B. McFerran, G.M. Allan, M. S. McNulty   +2 more
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Antibody Titers to Infectious Bursal Disease Virus in Broiler Chicks after Vaccination at One Day of Age with Infectious Bursal Disease Virus and Marek's Disease Virus

Avian Diseases, 2000
The effect of day-of-age vaccination with infectious bursal disease virus (IBDV) alone or in combination with Marek's disease virus (MDV) in broiler chicks was investigated. One-day-old commercial broiler progeny obtained from IBDV-immunized breeder flocks were vaccinated subcutaneously according to the manufacturer's directions with live-attenuated ...
H. V. Knoblich, S E Sommer, Daral J. Jackwood   +2 more
openaire   +3 more sources