Serum response of Escherichia coli strains causing dyspepsia and urinary tract infection: relation to alpha-hemolysin production and O type.
A total of 109 alpha-hemolytic and 104 nonhemolytic Escherichia coli isolates from children with dyspepsia and urinary tract infections were investigated for resistance to the bactericidal activity of human serum. A significantly higher proportion of serum resistance was found in alpha-hemolytic E. coli isolates than in nonhemolytic isolates (P < 0.01). An association between the titer of alpha-hemolysin produced and serum resistance was found.
Siegfried
L
L
Institute of Medical Microbiology, Faculty of Medicine, Safárik University, Kosice, Slovakia.
Kmetová
M
M
Janigová
V
V
Sasinka
M
M
Takácová
V
V
D001426:Bacterial Proteins / Q000096:biosynthesis*; D001770:Blood Bactericidal Activity; D002675:Child, Preschool; D004415:Dyspepsia / Q000276:immunology / Q000382:microbiology*; D004926:Escherichia coli / Q000145:classification / Q000276:immunology / Q000472:pathogenicity*; D004927:Escherichia coli Infections / Q000382:microbiology*; D029968:Escherichia coli Proteins; D006460:Hemolysin Proteins / Q000096:biosynthesis*; D006801:Humans; D007223:Infant; D019081:O Antigens / Q000032:analysis; D014552:Urinary Tract Infections / Q000276:immunology / Q000382:microbiology*
D001426:Bacterial Proteins; D029968:Escherichia coli Proteins; D006460:Hemolysin Proteins; C036507:Hlya protein, E coli; D019081:O Antigens