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  • Title: Escherichia coli O125ac:H6 encompasses atypical enteropathogenic E. coli strains that display the aggregative adherence pattern.
    Author: Barros SF, Abe CM, Rocha SP, Ruiz RM, Beutin L, Trabulsi LR, Elias WP.
    Journal: J Clin Microbiol; 2008 Dec; 46(12):4052-5. PubMed ID: 18923012.
    Abstract:
    O125 is an enteropathogenic Escherichia coli (EPEC) serogroup, which includes the O125ac:H6 serotype, defined as atypical EPEC. Strains of this serotype displayed the aggregative adherence (AA) pattern with HEp-2, Caco-2, T84, and HT-29 cells, possessed all the LEE region genes, and expressed intimin, Tir, and EspABD, although the attaching-effacing lesion was not detected in vitro. These results confirm that E. coli O125ac:H6 is atypical EPEC that displays the AA pattern and indicate the necessity of testing for EPEC genes combined with the determination of the adherence pattern for atypical EPEC identification.
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