Yan, Fang Phylogenetic analysis of S1 gene of infectious bronchitis virus isolates from China. [electronic resource] - Avian diseases Sep 2011 - 451-8 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0005-2086 Standard No.: 10.1637/9446-070510-ResNote.1 doi Subjects--Topical Terms: AnimalsBase SequenceChick EmbryoChickensChina--epidemiologyCloning, MolecularCoronavirus Infections--epidemiologyInfectious bronchitis virus--classificationMembrane Glycoproteins--geneticsPhylogenyPoultry Diseases--epidemiologyReverse Transcriptase Polymerase Chain ReactionSequence AlignmentSequence AnalysisSpike Glycoprotein, CoronavirusViral Envelope Proteins--geneticsViral Vaccines--immunology