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Infection with bacterial enteropathogens in Swedish travellers to South-East Asia–a prospective study

Published online by Cambridge University Press:  15 May 2009

C. M. Åhrén ,
M. Jertborn ,
L. Herclik ,
B. Kaijser  and
A.-M. Svennerholm
C. M. Åhrén*
Affiliation:
Departments of Medical Microbiology Infectious Diseases
M. Jertborn
Affiliation:
Departments of Medical Microbiology Infectious Diseases
L. Herclik
Affiliation:
Departments of Medical Microbiology
B. Kaijser
Affiliation:
Clinical Bacteriology, University of Göteborg, Göteborg, Sweden
A.-M. Svennerholm
Affiliation:
Departments of Medical Microbiology
*
*Christina åhrén, Department of medical Microbiology, University of Göteborg, Guldhedsgatan 10, 413 46 Göteborg, Sweden
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Infection with potential bacterial enteropathogens was studied prospectively in 94 Swedish travellers. Three faecal samples were collected, regardless of diarrhoeal symptoms, after each of three 1-week stays in Singapore, Hong Kong and Japan. The specimens were analysed for salmonella, shigella, yersinia, campylobacter and different enterotoxin-producing bacteria. A potential enteropathogen was identified in 30% (28/94) of the participants, i.e. in 26% of the healthy and in 39% of the travellers with diarrhoea. The most common isolates were enterotoxigenic bacteria of different species (14%), salmonella (11%) and campylobacter (7%). By performing enterotoxin-tests on six different colonies from the primary culture of each specimen enterotoxigenic Escherichia coli (ETEC) as well as enterotoxin-producing Klebsiella sp., Citrobacter sp. and Morganella morganii were identified. The latter strains were as prevalent as ETEC. In the 33 participants with diarrhoea enterotoxigenic bacteria (18%) and campylobacter (18%) were the most common isolates. Campylobacter-infected travellers developed symptomatic disease (6/7) significantly (P>0·02) more often than those infected with salmonella (3/10) or enterotoxigenic bacteria (6/13; 2 ETEC, 4 other species).

Type
Research Article
Information
Epidemiology & Infection , Volume 105 , Issue 2 , October 1990 , pp. 325 - 333
Copyright
Copyright © Cambridge University Press 1990

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