Distribution and Characteristics of Escherichia coli Clonal Group A

摘要

Among 1,102 recent Escherichia coli clinical isolates,clonal group A was identified in 17 of 20 (U.S. and non-U.S.) geographic locales, mainly among U.S. isolates (9%vs. 3%; p < 0.001) and those resistant to trimethoprim-sul-famethoxazole (10% vs. 1.7%; p < 0.001). The extensiveantimicrobial resistance and virulence profiles of clonalgroup A may underlie its recent widespread emergence