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Phylogenetic analysis of infectious bronchitis coronaviruses newly isolated in China, and pathogenicity and evaluation of protection induced by Massachusetts serotype H120 vaccine against QX-like strains

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Pathogenicity of a QX strain of infectious bronchitis virus in specific pathogen free and commercial broiler chickens, and evaluation of protection induced by a vaccination programme based on the Ma5 and 4/91 serotypes

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Neutralizing and precipitating antibodies against infectious bronchitis virus in chickens

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Protection of chickens against renal damage caused by a nephropathogenic infectious bronchitis virus

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