Comparative Genomic Characterization of a Thailand–Myanmar Isolate, MS6, of Vibrio cholerae O1 El Tor, Which Is Phylogenetically Related to a “US Gulf Coast” Clone

Abstract

Phylogenetic analysis reveals that MS6 is most closely related to a U. S. Gulf Coast clone, indicating their divergence before that of the El Tor biotype strains from a common V. cholerae O1 ancestor. We propose that MS6 serves as an environmental aquatic reservoir of V. cholerae O1.