Molecular epidemiology of asymptomatic bacteriuria in the elderly

Galia Rahav*, Erica Pinco, Gilad Bachrach, Herve Bercovier

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Objectives: To determine the incidence and the dynamics of asymptomatic bacteriuria in ambulatory nursing home residents, and to characterise bacteria according to their phenotype and genotype. Design: An 18 months prospective longitudinal study. Subjects: 42 nursing home residents (31 female, 11 males) without indwelling catheters. Methods: Urine was sampled every 3 months. Antibiograms, biotyping and ribotyping were performed. Results: The cumulative percent of infection for females and males was 75% and 27% respectively. Osteoporosis was associated with bacteriuria. Ribotypes of consecutive Escherichia coli isolates indicated that each patient harboured a different strain. Conclusions: Asymptomatic bacteriuria in the elderly is a dynamic and transient phenomenon. Osteoporosis is common among this population. Ribotyping is a powerful tool in the elucidation of the epidemiology of this bacteriuria.

Original languageAmerican English
Pages (from-to)670-673
Number of pages4
JournalAge and Ageing
Issue number6
StatePublished - Nov 2003
Externally publishedYes


  • Asymptomatic bacteriuria
  • Elderly
  • Genotyping
  • Phenotyping


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