Results 181 to 190 of about 46,942 (229)

Antigenic Characterization of Infectious Bronchitis Virus

The Journal of Immunology, 1968
Summary Three antigenically distinct soluble antigens (1–3) are associated with infectious bronchitis virus. The antigens are smaller than the virion. Antigens 1 and 3 are destroyed at 100°C, whereas antigen 2 is not. Antigen 2 is a ribonucleoprotein. The virus is sensitive to ether and sodium deoxycholate. Antigens released by treatment
S S, Tevethia, C H, Cunningham
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The structure of infectious bronchitis virus

Virology, 1964
Abstract The structure of infectious bronchitis virus of chickens has been examined by the negative staining technique in the electron microscope. The particles are between 800 and 1200 A in diameter and bear projections on their surfaces. The effects of ether, sodium dodecyl sulphate, trypsin, and neuraminidase on the morphology and on certain ...
D M, BERRY, J G, CRUICKSHANK, H P, CHU, R J, WELLS   +3 more
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Pathogenesis of H13 Nephropathogenic Infectious Bronchitis Virus

Avian Diseases, 1990
A nephropathogenic Massachusetts strain of infectious bronchitis virus (IBV) designated H13-IBV was isolated from the kidneys of commercial broilers. H13-IBV caused respiratory distress, depression, and diarrhea in specific-pathogen-free chickens. Gross renal lesions included pale coloration, swelling, and urate deposition.
G D, Butcher, R W, Winterfield, D P, Shapiro   +2 more
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Neutralizing Antibody Complex of Infectious Bronchitis Virus

The Journal of Immunology, 1969
Summary The reaction between infectious bronchitis virus-42 (Beaudette) and neutralizing antibody, and dissociation of the antigen-antibody complex, was studied by the plaque technique using chicken embryo kidney cell cultures. Neutralization was a first-order reaction dependent upon time and concentration of antibody.
M F, Stinski, C H, Cunningham
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Intracloacal infection with avian infectious bronchitis virus

Avian Pathology, 1998
An infectious bronchitis virus (IBV) strain HS-91 isolated from kidneys of chicks which died of nephrosis was inoculated via the cloaca of specific pathogen-free (SPF) chicks. These chicks showed more severe clinical signs, grosser kidney lesions and higher mortality than chicks inoculated with the same IBV strain via the trachea.
T, Uenaka, I, Kishimoto, S, Sato, S B, Animas, T, Ito, K, Otsuki, J K, Cook   +6 more
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Infectious bronchitis virus in Romanian broiler farms

Veterinary Record, 2017
We have been undertaking a specific surveillance programme to study the molecular epidemiology of infectious bronchitis virus (IBV) in Romanian broiler farms. The results of our monitoring activity, which detected and characterised Romanian variant 2 (GI-23) strains, corroborate the rising evidence of variant 2 genotype spreading westward through ...
FRANZO, GIOVANNI, TUCCIARONE, CLAUDIA MARIA, DRIGO, MICHELE, CECCHINATO, MATTIA, Enache, Mirel, Bejan, Violeta   +5 more
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Intracellular Development of Infectious Bronchitis Virus

Nature, 1967
CELLS infected with infectious bronchitis (IB) virus in tissue cultures of chick or chick embryo kidney have been described as showing shrinkage, vacuolation and detachment from the monolayer1–4. When the immuno-fluorescent technique was used, the growth of IB virus in chick embryo kidney cells, first in the nucleus and later in the cytoplasma, was ...
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QX‐like infectious bronchitis virus in Africa

Veterinary Record, 2011
INFECTIOUS bronchitis is an infection of poultry that occurs globally. The viral agent – a coronavirus – can spread rapidly and cause economic losses in industrial and backyard poultry. Because of this, in Europe and North America, this disease is monitored and vaccination is routinely applied.
Anna, Toffan, Isabella, Monne, Calogero, Terregino, Giovanni, Cattoli, Canaan T, Hodobo, Biko, Gadaga, Pious V, Makaya, Enat, Mdlongwa, Samuel, Swiswa   +8 more
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Avian infectious bronchitis virus.

Revue scientifique et technique (International Office of Epizootics), 2001
Infectious bronchitis virus (IBV) is prevalent in all countries with an intensive poultry industry, with the incidence of infection approaching 100% in most locations. Vaccination is only partially successful due to the continual emergence of antigenic variants.
J, Ignjatović, S, Sapats
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Epidemiology of Infectious Bronchitis Virus

1995
Avian infectious bronchitis virus (IBV) is the type species of the genus Coronavirus of the family Coronaviridae. It is of considerable economic importance to the poultry industry worldwide, causing a highly contagious disease affecting the respiratory, reproductive, and renal systems.
Jane K. A. Cook, A. P. A. Mockett
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