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Prevalence of Vibrio cholerae with heat-stable enterotoxin (NAG-ST) and cholera toxin genes; restriction fragment length polymorphisms of NAG-ST genes among V. cholerae O serogroups from a major shrimp production area in Thailand

Dalsgaard, A.; Serichantalergs, O.; Shimada, T.; Sethabutr, O.; Echeverria, P.

Journal of Medical Microbiology 43(3): 216-220

1995


ISSN/ISBN: 0022-2615
PMID: 7650730
DOI: 10.1099/00222615-43-3-216
Accession: 009239803

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A total of 148 Vibrio cholerae isolates from a major shrimp production area in Southern Thailand were examined by colony hybridisation for genes encoding heat-stable enterotoxin (NAG-ST) and cholera toxin (CT). Only non-O1 V. cholerae strains were found to harbour NAG-ST (14 of 146) whereas no strains hybridised with the CT probe. NAG-ST positive V. cholerae non-O1 strains were isolated from shrimp farms situated close to urban areas.