title: The sensitivity of escherichia coli strains with K1 surface antigen and rods without this antigen to the bactericidal effect of serum.
abstract: The susceptibility of Escherichia coli strains with K1 surface antigen (K1+) and rods without this antigen (K1-) to the bactericidal action of normal bovine serum and human normal cord serum was determined. Seventy E. coli strains (35 K1+ and 35 K1-) were isolated from urine obtained from children with urinary tract infections. The strains investigated showed variable sensitivity to the bactericidal action of the sera. E. coli K1+ strains were characterized by lower sensitivity to bactericidal effect of the sera in comparison with K1- rods. The role of the particular mechanisms of complement activation in the process of killing of the E. coli strains was also determined.
authors.affiliation: Department of Biology and Medical Parasitology, Medical University, 50-367 Wrocław, Poland. Cisowska@biolog.am.wroc.pl
authors.forename: A
authors.initials: A
authors.lastname: Cisowska
authors.forename: S
authors.initials: S
authors.lastname: Jankowski
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000276:immunology*; D001770:Blood Bactericidal Activity; D002648:Child; D003167:Complement Activation; D004926:Escherichia coli / Q000276:immunology*; D006801:Humans
chemical_list: D000942:Antigens, Bacterial