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Year : 2014  |  Volume : 1  |  Issue : 4  |  Page : 254-257

Vibrio isolates from cases of acute diarrhea and their antibiotic susceptibility pattern in a tertiary care hospital of Punjab

Department of Microbiology, Christian Medical College, Ludhiana, Punjab, India

Correspondence Address:
Dr. Aroma Oberoi
Department of Clinical Microbiology, Christian Medical College, Ludhiana - 141 008, Punjab
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2348-3334.142995

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Introduction: Vibrio cholerae, the cause of cholera, is one of the leading causes of morbidity and mortality in many developing countries. Especially during monsoon season, cholera outbreaks have been frequently reported from one or the other part of this country. However, occasional sporadic cases have also been reported, majorly due to lack of proper sanitation and impure water supply. Aim: To determine the prevalence of serotypes of Vibrio isolates from cases of acute diarrhea and their antibiotic susceptibility pattern in a tertiary care hospital, North India. Materials and Methods: A retrospective study was conducted over a period of 1 year from January 2013 to December 2013 in the department of microbiology, in a tertiary care hospital in Punjab. The diagnosis was suggested by the clinical picture and confirmed by stool culture. The stool samples received in the laboratory were processed by standard microbiological techniques for identification of V. cholerae. The suspected colonies of Vibrio were identified by standard biochemical tests and serotyping was done by group specific antisera. The susceptibility of all the isolated Vibrio species to different antibiotics were done by Kirby-Bauer's disk diffusion technique as per the Clinical and Laboratory Standards Institute (CLSI) guidelines. Results: V. cholerae were isolated from 41 (3.8%) of total 1063 stool samples received during the study period. On serotyping, 100% (41) of these positive samples were identified as V. cholerae 01 ogawa serotype. 95% (39) cases were encountered during monsoon season. In the present study analysis of the antibiotic susceptibility data showed highest susceptibility to gentamicin, amikacin, tetracycline and chloramphenicol. There is gradual increase in resistance to ampicillin and high level of resistance was observed for furazolidone and trimethoprim-sulphamethoxazole during the same period. Conclusions: Our study reveals a significant increase in cases of Vibrio infection during monsoon season, with V. cholerae 01ogawa as the predominant serotype. The results also suggest that this organism has begun to develop resistance against ampicillin, trimethoprim-sulphamethoxazole and furazolidone drugs and therefore these should not be used in the first line treatment.

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