Results 201 to 210 of about 79,467 (260)

Coexistence of Infectious Bronchitis and Infectious Laryngotracheitis

Avian Diseases, 1967
The prevalence of infectious bronchitis (IB) of chickens in many parts of the world (2,3,4,5,6,7,10,12,13,14,15,21,22,23,25), and the invasiveness of its virus (11), indicate that this generally mild disease may be important when associated with other poultry pathogens.
L G, Raggi, J, Asmar, G G, Lee
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The Pathology of Infectious Bronchitis

Avian Diseases, 2021
Infectious bronchitis (IB) is an acute disease of chickens caused by a gammacoronavirus, infectious bronchitis virus (IBV). Infection of the nasal and tracheal mucosa causes a rapid loss of ciliated epithelium and impaired mucociliary clearance that predispose chickens to secondary bacterial infections.
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Genome of infectious bronchitis virus

Journal of Virology, 1977
Techniques are described for the growth and rapid purification of the avian coronavirus infectious bronchitis virus (IBV). Purified IBV has a sedimentation coefficient of 320S and a buoyant density of 1.22 g/ml in sucrose-deuterium oxide equilibrium gradients.
B, Lomniczi, I, Kennedy
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Infectious Bronchitis

2020
Agent, Infection, and Disease. Infectious bronchitis is caused by the avian coronavirus, infectious bronchitis virus (IBV), which is found worldwide. Infections, depending on the strain, may cause an acute upper‐respiratory tract disease, drops in egg production, decreased egg quality, and nephritis.
Jackwood, M, de Wit, Sjaak
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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   +3 more
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Infectious bronchitis in New Zealand chickens

New Zealand Veterinary Journal, 1972
Abstract Extract Infectious bronchitis is an acute and highly contagious viral disease which typically appears as an upper respiratory tract infection of young chickens (Hofstad, 1959b). The causative agent also causes a drop in the quantity and quality of eggs laid by adult birds (McDougall, 1968) and severe nephritis, commonly termed “uraemia”, in ...
I P, McCausland, M E, Carter, R, Hunter
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Potential for Polyvalent Infectious Bronchitis Vaccines

American Journal of Veterinary Research, 1975
SUMMARY Numerous antigenic types and subtypes of infectious bronchitis virus (ibv) have been isolated and characterized from field epornitics of infectious bronchitis (ib). Thus obvious failures in obtaining the necessary protection from vaccination have been documented and they underscore the urgent need for vaccines which stimulate a broader spectrum
R W, Winterfield, A M, Fadly
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Infectious bronchitis in chickens

New Zealand Veterinary Journal, 1967
(1967). Infectious bronchitis in chickens. New Zealand Veterinary Journal: Vol. 15, No. 8, pp. 151-151.
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