title: Colicin V production by clinical isolates of Escherichia coli.
abstract: Strains of Escherichia coli isolated from random fecal samples, urines of hospitalized and nonhospitalized patients who had urinary tract infections, and blood of patients with septicemia were examined for colicin V production. The percentage of ColV+ strains isolated from blood (31.6%) or from urines of hospitalized patients with urinary tract infections (26.2%) was significantly greater (P less than 0.01) than the percentage isolated from feces (13.6%). The colicin V immunity determinant of ColV,I-K94 conferred immunity to 26% of the type V colicins produced by clinical isolates. Of the ColV+ strains studied, 63.6% produced at least one other type of colicin.
mesh_terms: D001437:Bacteriuria / Q000382:microbiology; D003087:Colicins / Q000096:biosynthesis*; D004926:Escherichia coli / Q000276:immunology* / Q000378:metabolism; D004927:Escherichia coli Infections / Q000382:microbiology*; D005243:Feces / Q000382:microbiology; D018805:Sepsis / Q000382:microbiology*; D014552:Urinary Tract Infections / Q000382:microbiology
chemical_list: D003087:Colicins