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Published in: Gut Pathogens 1/2010

Open Access 01-11-2010 | Research

PFGE, Lior serotype, and antimicrobial resistance patterns among Campylobacter jejuni isolated from travelers and US military personnel with acute diarrhea in Thailand, 1998-2003

Authors: Oralak Serichantalergs, Piyarat Pootong, Anders Dalsgaard, Ladaporn Bodhidatta, Patricia Guerry, David R Tribble, Sinn Anuras, Carl J Mason

Published in: Gut Pathogens | Issue 1/2010

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Abstract

Background

Campylobacter jejuni is a major cause of gastroenteritis worldwide. In Thailand, several strains of C. jejuni have been isolated and identified as major diarrheal pathogens among adult travelers. To study the epidemiology of C. jejuni in adult travelers and U.S. military personnel with acute diarrhea in Thailand from 1998-2003, strains of C. jejuni were isolated and phenotypically identified, serotyped, tested for antimicrobial susceptibility, and characterized using pulsed-field gel electrophoresis (PFGE).

Results

A total of 312 C. jejuni isolates were obtained from travelers (n = 46) and U.S. military personnel (n = 266) in Thailand who were experiencing acute diarrhea. Nalidixic acid and ciprofloxacin resistance was observed in 94.9% and 93.0% of the isolates, respectively. From 2001-2003, resistance to tetracycline (81.9%), trimethoprim-sulfamethoxazole (57.9%), ampicillin (28.9%), kanamycin (5.9%), sulfisoxazole (3.9%), neomycin (2.0%), and streptomycin (0.7%) was observed. Combined PFGE analysis showed considerable genetic diversity among the C. jejuni isolates; however, four PFGE clusters included isolates from the major Lior serotypes (HL: 36, HL: 11, HL: 5, and HL: 28). The PFGE analysis linked individual C. jejuni clones that were obtained at U.S. military exercises with specific antimicrobial resistance patterns.

Conclusions

In summary, most human C. jejuni isolates from Thailand were multi-resistant to quinolones and tetracycline. PFGE detected spatial and temporal C. jejuni clonality responsible for the common sources of Campylobacter gastroenteritis.
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Metadata
Title
PFGE, Lior serotype, and antimicrobial resistance patterns among Campylobacter jejuni isolated from travelers and US military personnel with acute diarrhea in Thailand, 1998-2003
Authors
Oralak Serichantalergs
Piyarat Pootong
Anders Dalsgaard
Ladaporn Bodhidatta
Patricia Guerry
David R Tribble
Sinn Anuras
Carl J Mason
Publication date
01-11-2010
Publisher
BioMed Central
Published in
Gut Pathogens / Issue 1/2010
Electronic ISSN: 1757-4749
DOI
https://doi.org/10.1186/1757-4749-2-15

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