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High colonization rates of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli in Swiss travellers to South Asia- a prospective observational multicentre cohort study looking at epidemiology, microbiology and risk factors.
High colonization rates of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli in Swiss travellers to South Asia- a prospective observational multicentre cohort study looking at epidemiology, microbiology and risk factors.
- Source :
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BMC infectious diseases [BMC Infect Dis] 2014 Oct 01; Vol. 14, pp. 528. Date of Electronic Publication: 2014 Oct 01. - Publication Year :
- 2014
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Abstract
- Background: International travel contributes to the worldwide spread of multidrug resistant Gram-negative bacteria. Rates of travel-related faecal colonization with extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae vary for different destinations. Especially travellers returning from the Indian subcontinent show high colonization rates. So far, nothing is known about region-specific risk factors for becoming colonized.<br />Methods: An observational prospective multicentre cohort study investigated travellers to South Asia. Before and after travelling, rectal swabs were screened for third-generation cephalosporin- and carbapenem-resistant Enterobacteriaceae. Participants completed questionnaires to identify risk factors for becoming colonized. Covariates were assessed univariately, followed by a multivariate regression.<br />Results: Hundred and seventy persons were enrolled, the largest data set on travellers to the Indian subcontinent so far. The acquired colonization rate with ESBL-producing Escherichia coli overall was 69.4% (95% CI 62.1-75.9%), being highest in travellers returning from India (86.8%; 95% CI 78.5-95.0%) and lowest in travellers returning from Sri Lanka (34.7%; 95% CI 22.9-48.7%). Associated risk factors were travel destination, length of stay, visiting friends and relatives, and eating ice cream and pastry.<br />Conclusions: High colonization rates with ESBL-producing Enterobacteriaceae were found in travellers returning from South Asia. Though risk factors were identified, a more common source, i.e. environmental, appears to better explain the high colonization rates.
- Subjects :
- Adolescent
Adult
Aged
Asia epidemiology
Child
Child, Preschool
Cohort Studies
Enterobacteriaceae classification
Enterobacteriaceae enzymology
Enterobacteriaceae genetics
Enterobacteriaceae isolation & purification
Enterobacteriaceae Infections epidemiology
Enterobacteriaceae Infections microbiology
Escherichia coli classification
Escherichia coli genetics
Escherichia coli Infections microbiology
Escherichia coli Proteins genetics
Escherichia coli Proteins metabolism
Feces microbiology
Female
Humans
Infant
Male
Middle Aged
Molecular Sequence Data
Phylogeny
Prospective Studies
Risk Factors
Switzerland
Travel
Young Adult
beta-Lactamases genetics
Escherichia coli enzymology
Escherichia coli isolation & purification
Escherichia coli Infections epidemiology
beta-Lactamases metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1471-2334
- Volume :
- 14
- Database :
- MEDLINE
- Journal :
- BMC infectious diseases
- Publication Type :
- Academic Journal
- Accession number :
- 25270732
- Full Text :
- https://doi.org/10.1186/1471-2334-14-528