title: [Preparation and study of the biological properties of a "cold" variant of an ornithosis strain].
mesh_terms: D000220:Adaptation, Biological; D000818:Animals; D000941:Antigens / Q000032:analysis; D002460:Cell Line; D002642:Chick Embryo; D002689:Chlamydia / Q000276:immunology / Q000302:isolation & purification / Q000472:pathogenicity; D003080:Cold Temperature; D003168:Complement Fixation Tests; D005347:Fibroblasts; D006386:Hemagglutination Tests; D051379:Mice; D009956:Psittacosis / Q000276:immunology / Q000517:prevention & control*; D014611:Vaccination; D014776:Virus Cultivation
chemical_list: D000941:Antigens
vernacular_title: Poluchenie i izuchenie biologicheskikh svoĭstv "kholodnogo" varianta shtamma ornitoza.