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Emerg Infect Dis. 2005 Sep;11(9):1464-6.

Beta-lactam resistance and Enterobacteriaceae, United States.

Author information

1
Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. zyr3@cdc.gov

Abstract

Extended-spectrum cephalosporins (ESC) are an important drug class for treating severe Salmonella infections. We screened the human collection from the National Antimicrobial Resistance Monitoring System 2000 for ESC resistance mechanisms. Of non-Typhi Salmonella tested, 3.2% (44/1,378) contained blaCMY genes. Novel findings included blaCMY-positive Escherichia coli O157:H7 and a blaSHV-positive Salmonella isolate. CMY-positive isolates showed a ceftriaxone MIC > or =2 microg/mL.

PMID:
16229784
PMCID:
PMC3310626
DOI:
10.3201/eid1109.050182
[Indexed for MEDLINE]
Free PMC Article

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