title: Australian infectious bronchitis viruses: plaque formation and assay methods.
mesh_terms: D001315:Australia; D002478:Cells, Cultured; D003332:Coronaviridae / Q000254:growth & development*; D003588:Cytopathogenic Effect, Viral; D001351:Infectious bronchitis virus / Q000254:growth & development*; D010948:Viral Plaque Assay