High Prevalence of Vibrio cholerae Non-O1 Carrying Heat-Stable-Enterotoxin-Encoding Genes among Vibrio Isolates from a Temperate-Climate River Basin of Central Italy.

Applied and Environmental Microbiology
G CaldiniE Lanciotti

Abstract

Vibrio spp. of clinical interest from the Arno River basin (Tuscany, Italy) were investigated in this study. Vibrios were isolated from 70% of water samples. Vibrio cholerae non-O1 was the most prevalent species (82% of isolates), followed by Vibrio mimicus (10%) and Vibrio metschnikovii (8%). Recovery of vibrios was correlated with temperature, pH, and various indicators of municipal pollution. None of the 150 Vibrio isolates carried ctx-related genomic sequences, whereas 18 (14.6%) of the 123 V. cholerae non-O1 isolates and 1 (6.7%) of the 15 V. mimicus isolates carried sto alleles. These findings indicate that considerable circulation of sto-positive vibrios may occur in temperate-climate freshwater environments.

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Citations

May 26, 2001·Applied and Environmental Microbiology·I N RiveraR R Colwell
Oct 7, 2006·Current Opinion in Gastroenterology·A Ljungh
Jul 9, 2004·Applied and Environmental Microbiology·Janelle R ThompsonMartin F Polz
Oct 9, 2004·Journal of Clinical Microbiology·Hans-Jörg LindeLothar Beutin

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