title: Induction of interferon by the Bour strain of trachoma in HeLa 229 cells.
mesh_terms: D002689:Chlamydia / Q000276:immunology*; D006367:HeLa Cells; D007372:Interferons / Q000096:biosynthesis*; D017955:Poliovirus / Q000276:immunology
chemical_list: D007372:Interferons