pap genotype and P fimbrial expression in Escherichia coli causing bacteremic and nonbacteremic febrile urinary tract infection

Research output: Contribution to journalArticle


Escherichia coli strains from patients with febrile urinary tract infections (n=73) were examined for pap genotype and P fimbrial expression in relation to bacteremia and patients' background variables. Most isolates were pap(+) by DNA hybridization (n=51), and 36 were papG(IA2)(+) and 18 prsG(J96)(+) by polymerase chain reaction. The pap and papG genotypes of the infecting strain were shown to vary with host compromise, sex, and age. Bacteremia in noncompromised patients was caused by papG(IA2)(+) strains, but compromised hosts carried a mixture of papG(IA2)(+), prsG(J96)(+), and pap(-) strains. Women of all ages were infected with papG(IA2)(+) strains. Infected men carried prsG(J96)(+) or pap(-) strains and were older, and most had compromising conditions. papG(IA2)(+) strains predominated among patients with medical illness, whereas prsG(J96)(+) strains predominated among patients with urinary tract abnormalities. These findings emphasize the strong influence of host factors on the selection of E. coli strains causing febrile urinary tract infections.


Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Infectious Medicine
Original languageEnglish
Pages (from-to)1523-1531
JournalClinical Infectious Diseases
Issue number11
Publication statusPublished - 2001
Publication categoryResearch

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Division of Microbiology, Immunology and Glycobiology - MIG (013025200), Division of Infection Medicine (SUS) (013008000), Division of Molecular Medicine and Gene Therapy (013022010)