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. 1991 Aug;107(1):225–233. doi: 10.1017/s0950268800048846

Genetic diversity among toxigenic and nontoxigenic Vibrio cholerae O1 isolated from the Western Hemisphere.

F Chen 1, G M Evins 1, W L Cook 1, R Almeida 1, N Hargrett-Bean 1, K Wachsmuth 1
PMCID: PMC2272037  PMID: 1879486

Abstract

Multilocus enzyme electrophoresis was used to examine genetic relationships among and between toxigenic and non-toxigenic isolates of Vibrio cholerae O1 obtained from patients and the environment in the US Gulf Coast and surrounding areas. A total of 23 toxigenic and 23 non-toxigenic strains were examined. All the toxigenic and 7 of the non-toxigenic strains had the same alleles at 16 enzyme loci, whereas the balance of the nontoxigenic strains had 9 distinct combinations of alleles. This study suggests that all of the toxigenic strains belong to a single clone, and that while some of the non-toxigenic isolates were related, most were of diverse origin.

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Selected References

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