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8 day old chick with difficulty breathing, due to an Avian influenza infection. Avian infectious bronchitis, caused by a strain of Avian coronavirus previously known as infectious bronchitis virus [2] Avian infectious laryngotracheitis, caused by Gallid alphaherpesvirus 1 [3] Avian influenza, caused by Avian influenza virus [4]
The disease affects all ages of chickens. The disease can persist in the flock for 2-3 weeks and signs of the disease are seen 1–3 days after infection. Transmission of the disease is through direct interaction, airborne droplets, and drinking contaminated water. Chickens having infection and those carriers contribute highly to the disease ...
Avian infectious bronchitis (IB) is an acute and highly contagious respiratory disease of chickens.The disease is caused by avian infectious bronchitis virus (IBV), a coronavirus (Coronaviridae, Orthocoronavirinae, genus Gammacoronavirus, subgenus Igacovirus), [1] and characterized by respiratory signs including gasping, coughing, sneezing, tracheal rales, and nasal discharge.
Marek's disease is a highly contagious viral neoplastic disease in chickens. It is named after József Marek , a Hungarian veterinarian who described it in 1907. Marek's disease is caused by an alphaherpesvirus commonly known as "Marek's disease virus" (MDV). [ 2 ]
It causes chronic respiratory disease (CRD) in chickens and infectious sinusitis in turkeys, chickens, game birds, pigeons, and passerine birds of all ages. [1] [2] Mycoplasma gallisepticum is a significant pathogen in poultry. Mycoplasmosis is the disease caused by infection with mycoplasmas. Mycoplasmas have many defining characteristics.
Nationwide, more than 46 million chickens and turkeys have been killed by the disease or culled to prevent its spread. Worst US bird flu outbreak in history expands to Michigan Skip to main content
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