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In the original publication, there is an error in the article title. It should be corrected as ‘Efficacy of H120 and Ma5 avian infectious bronchitis vaccines in early challenge against QX strain’. Also, ‘OX strain’ should be changed to ‘QX strain’ throughout the article.
Infectious bronchitis (IB) is a highly infectious avian pathogen, which affects the respiratory tract, gut, reproductive system, and kidney of chicks of all ages. Many different serotypes of IB virus (IBV) are recognized which cause different clinical manifestations. According to the antigenic differences, different serotypes of the virus do not cross-protect. Massachusetts serotype induces the best...
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