
Identification of the avian infectious bronchitis coronaviruses with mutations in gene 3
Keywords: رونویسی معکوس; IB; infectious bronchitis; IBV; infectious bronchitis virus; ORF; open reading frame; SARS-CoV; severe acute respiratory syndrome-associated coronavirus; ns; nonstructural; S; spike; M; membrane; E; envelop; N; nucleocapsid; RT; Reverse transcription; PCR