title: Comparative titers of egg assay against immunofluorescent assay of Chlamydia psittaci.
abstract: A comparison of titers was made between an egg assay and a direct fluorescent antibody assay of three chlamydial strains propagated in Vero cells with and without cortisone plus cytochalasin B. The titer of NJ-1 strain was similar in the egg titration and the fluorescent antibody assay in the untreated sample and a little lower for the sample treated with cytochalasin B and cortisone. The SCT and CDC strains had approximately the same titers in the egg titration and the fluorescent antibody assay for samples with and without the antimetabolites.
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis*; D001681:Biological Assay / Q000379:methods*; D002478:Cells, Cultured; D002642:Chick Embryo; D002691:Chlamydophila psittaci / Q000276:immunology*; D003571:Cytochalasin B / Q000008:administration & dosage; D005260:Female; D005455:Fluorescent Antibody Technique; D007158:Immunologic Techniques; D010063:Ovum; D015017:Yolk Sac / Q000382:microbiology
chemical_list: D000907:Antibodies, Bacterial; D003571:Cytochalasin B