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  • Title: Occurrence of P-fimbriated Escherichia coli in patients with bacteremia.
    Author: Brauner A, Leissner M, Wretlind B, Julander I, Svenson SB, Källenius G.
    Journal: Eur J Clin Microbiol; 1985 Dec; 4(6):566-9. PubMed ID: 2868894.
    Abstract:
    The case history of 88 patients with blood cultures positive for Escherichia coli and evidence of systemic disease was reviewed, and the Escherichia coli blood isolates tested for P-fimbriation. Fifty-five strains (63%) were P-fimbriated. Patients with a positive urine culture had a higher incidence of P-fimbriated Escherichia coli strains (53/75, 71%) than patients with a negative urine culture (2/13, 15%). Patients with no predisposing factors, such as instrumentation of the urinary tract or a chronic disease, had a significantly higher frequency of P-fimbriated strains (31/36, 86%) compared to patients without such underlying factors (p less than 0.01). There was no significant difference in clinical parameters or in frequency of P-fimbriated strains between patients with one positive blood culture and those with two or more positive cultures. The high incidence of P-fimbriated Escherichia coli strains in these patients is thought to depend on the ability of such bacteria to cause acute pyelonephritis, which in many cases precedes Escherichia coli bacteremia.
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