Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A–D) Distribution of genotypes and phylogenetic groups of 95 extended-spectrum β-lactamase (ESBL)-producing Escherichia coli isolates from patients with bloodstream infection. (A) ESBL genes in all 95 ESBL E. coli isolates (n=95); (B) phylogenetic groups of all 95 ESBL E. coli isolates; (C) phylogenetic groups of CTX-M-15 E. coli isolates (n=55); (D) phylogenetic groups of CTX-M-1 E. coli isolates (n=21).
Abbreviation: ESBL, extended-spectrum β-lactamase.
