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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/24894
Title: Antimicrobial susceptibility patterns and phage types of Salmonella typhi from Vietnam
Authors: Nguyen Dac Trung
Usanee Suthisarnsuntorn
Thareerat Kalambaheti
Wijit Wonglumsom
Witawat Tunyong
Mahidol University
Thai Nguyen Medical University
Keywords: Medicine
Issue Date: 1-May-2007
Citation: Southeast Asian Journal of Tropical Medicine and Public Health. Vol.38, No.3 (2007), 487-492
Abstract: A retrospective study of the patterns of antimicrobial susceptibility and phage types of 111 Salmonella typhi strains isolated in 1996 from Vietnam was carried out. The strains were tested for susceptibility to chloramphenicol, ampicillin, tetracycline, trimethoprimsulfamethoxazole, nalidixic acid, ceftazidime, ceftriaxone and ciprofloxacin. Simultaneous resistance to chloramphenicol, ampicillin, tetracycline and trimethoprim-sulfamethoxazole were present in 84 strains (75.7%). Nalidixic acid resistance was only observed In 2 multidrug-resistant strains (1.8%). Twenty-one strains (18.9%) were completely susceptible to all drugs tested. All 111 strains were susceptible to ceftazidime, ceftriaxone and cipropfloxacin. The MIC values for chloramphenicol, ampicillin and trimethoprim-sulfamethoxazole corresponded with the results by disk diffusion method. On Vi phage-typing, 5 different phage types (28, A, D1, E1 and M1) were found in 12 strains (10.8%). However, most S. typhi strains were indistinguishable by this typing technique because they were degraded Vi-positive or untypeable Vipositive strains (35.1% and 54.1%, respectively). There were no correlations between antimicrobial resistance patterns and phage types in the tested S. typhi strains in this study.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34547364735&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/24894
ISSN: 01251562
Appears in Collections:Scopus 2006-2010

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