title: [Substance produced by Klebsiella pneumoniae with protects it from the bactericidal effect of normal human serum].
abstract: A Klebsiella pneumoniae culture in Fouad's chemically defined medium, which was grown from 18 to 24 hours at 37 degrees C was prepared. Bacterial cells were eliminated by centrifugation and the supernatant was sterilized by Millipore membrane filtration. A protective activity against normal human serum bactericidal effect on K. pneumoniae K-9 and K-13 was ascribed to sterile filtrate. The protective filtrate seems to be a high molecular weight substance.
authors.affiliation: Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México, D.F.
authors.forename: O
authors.initials: O
authors.lastname: Rodas-Suárez
authors.forename: A
authors.initials: A
authors.lastname: Martínez-Ramos
mesh_terms: D001685:Biological Factors / Q000302:isolation & purification* / Q000494:pharmacology; D001770:Blood Bactericidal Activity / Q000187:drug effects*; D017077:Culture Media, Conditioned / Q000737:chemistry; D003956:Dialysis; D006801:Humans; D007711:Klebsiella pneumoniae / Q000254:growth & development / Q000378:metabolism*; D014462:Ultrafiltration
chemical_list: D001685:Biological Factors; D017077:Culture Media, Conditioned
vernacular_title: Substancia producida por Klebsiella pneumoniae que la protege del efecto bactericida del suero humano normal.