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Coinfection of avian influenza virus (H9N2 subtype) with infectious bronchitis live vaccine

Avian influenza virus of H9N2 subtype is pathotyped as a non-highly pathogenic virus. However, frequent incidences of avian influenza of high mortality that are caused by H9N2 viruses have been observed in bro...

M. Haghighat-Jahromi, K. Asasi, H. Nili, H. Dadras… in Archives of Virology (2008)