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Journal of Clinical Microbiology, February 2000, p. 895-897, Vol. 38, No. 2
0095-1137/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
Epidemic Typhoid in Vietnam: Molecular Typing of
Multiple-Antibiotic-Resistant Salmonella enterica Serotype
Typhi from Four Outbreaks
Phillippa
Connerton,1
John
Wain,2,3
Tran T.
Hien,4
Tahir
Ali,1
Christopher
Parry,2,3
Nguyen T.
Chinh,5
Ha
Vinh,4
Vo A.
Ho,6
To S.
Diep,4
Nicholas P. J.
Day,2
Nicholas J.
White,2,3
Gordon
Dougan,1 and
Jeremy J.
Farrar2,3,*
The Department of Biochemistry, Imperial
College of Science, Technology and Medicine, London SW7
2AZ,1 and The Centre for Tropical
Medicine, Nuffield Department of Clinical Medicine, Oxford University,
John Radcliffe Hospital, Oxford,3 United
Kingdom, and The Centre for Tropical
Diseases4 and Wellcome Trust Clinical
Research Unit,2 Cho Quan Hospital, and the
University of Medicine and Pharmacy,5 Ho
Chi Minh City, and Dong Thap Provincial Hospital, Cao Lanh,
Dong Thap,6 Vietnam
Received 23 July 1999/Returned for modification 8 October
1999/Accepted 13 November 1999
Multidrug-resistant Salmonella enterica serotype Typhi
isolates from four outbreaks of typhoid fever in southern Vietnam
between 1993 and 1997 were compared. Pulsed-field gel electrophoresis, bacteriophage and plasmid typing, and antibiotic susceptibilities showed that independent outbreaks of multidrug-resistant typhoid fever
in southern Vietnam are caused by single bacterial strains. However,
different outbreaks do not derive from the clonal expansion of a single
multidrug-resistant serotype Typhi strain.
*
Corresponding author. Mailing address: Wellcome Trust
Clinical Research Unit, The Center for Tropical Diseases, 190 Ben Ham Tu Quan 5, Ho Chi Minh City, Vietnam. Phone: 84 8 835 3954. Fax: 84 8 835 3904. E-mail: jeremyjf{at}hcm.vnn.vn.
Journal of Clinical Microbiology, February 2000, p. 895-897, Vol. 38, No. 2
0095-1137/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
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