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.
AmpC β-lactamase–producing Escherichia coli isolates per 1,000 E. coli isolates, Calgary Health Region, 2000–2003. Data are averaged over the 4-year period. The presence of plasmid-mediated AmpC β-lactamase genes was determined using multiplex PCR conditions and primers as described [8]. CMY; isolates positive for chromosomal gene of Citrobacter freundii; non-CMY; isolates negative by multiplex PCR.
