Prevalence and significance of a negative extended-spectrum beta-lactamase (ESBL) confirmation test result after a positive ESBL screening test result for isolates of Escherichia coli and Klebsiella pneumoniae: results from the SENTRY Asia-Pacific surveillance program
Bell JM, Chitsaz M, Turnidge JD et al. Prevalence and significance of a negative extended-spectrum beta-lactamase (ESBL) confirmation test result after a positive ESBL screening test result for isolates of Escherichia coli and Klebsiella pneumoniae: results from the SENTRY Asia-Pacific surveillance program. J Clin Microbiol 2007; 45: 1478-82.
Occurrence of plasmidic AmpC type beta-lactamase-mediated resistance in Escherichia coli: report from the SENTRY antimicrobial surveillance program (North America 2004)
Deshpande LM, Jones RN, Fritsche TR et al. Occurrence of plasmidic AmpC type beta-lactamase-mediated resistance in Escherichia coli: report from the SENTRY antimicrobial surveillance program (North America, 2004). Int J Antimicrob Agents 2006; 28: 578-81.
Characterization of the plasmidic beta-lactamase CMY-2, which is responsible for cephamycin resistance
Bauernfeind A, Stemplinger I, Jungwirth R et al. Characterization of the plasmidic beta-lactamase CMY-2, which is responsible for cephamycin resistance. Antimicrob Agents Chemother 1996; 40: 221-4.
Phenotypic and biochemical comparison of the carbapenem-hydrolyzing activities of five plasmid-borne AmpC beta-lactamases
Mammeri H, Guillon H, Eb F et al. Phenotypic and biochemical comparison of the carbapenem-hydrolyzing activities of five plasmid-borne AmpC beta-lactamases. Antimicrob Agents Chemother 2010; 54: 4556-60.
Surveillance of community-based reservoirs reveals the presence of CTX-M, imported AmpC, and OXA-30 beta-lactamases in urine isolates of Klebsiella pneumoniae and Escherichia coli in a U.S. community
Hanson ND, Moland ES, Hong SG et al. Surveillance of community-based reservoirs reveals the presence of CTX-M, imported AmpC, and OXA-30 beta-lactamases in urine isolates of Klebsiella pneumoniae and Escherichia coli in a U.S. community. Antimicrob Agents Chemother 2008; 52: 3814-6.
Prevalence of newer beta-lactamases in Gram-negative clinical isolates collected in the United States from 2001 to 2002
Moland ES, Hanson ND, Black JA et al. Prevalence of newer beta-lactamases in Gram-negative clinical isolates collected in the United States from 2001 to 2002. J Clin Microbiol 2006; 44: 3318-24.
Phenotypic and molecular detection of CTX-M-beta-lactamases produced by Escherichia coli and Klebsiella spp
Pitout JD, Hossain A, Hanson ND. Phenotypic and molecular detection of CTX-M-beta-lactamases produced by Escherichia coli and Klebsiella spp. J Clin Microbiol 2004; 42: 5715-21.
Clinical and Laboratory Standards Institute. CLSI, Wayne, PA, USA
Clinical and Laboratory Standards Institute. Performance Standards for Antimicrobial Susceptibility Testing: Twentieth Informational Supplement M100-S20. CLSI, Wayne, PA, USA, 2010.
Pulse Net National Subtyping Network for Foodborne Disease Surveillance. non-typhoidal Salmonella serotypes, and Shigella sonnei by pulsed field gel electrophoresis (PFGE). 2004. (26 April 2011, date last accessed)
Pulse Net National Subtyping Network for Foodborne Disease Surveillance. One-day (24-28 h) standardized laboratory protocol for molecular subtyping of Escherichia coli O157:H7, non-typhoidal Salmonella serotypes, and Shigella sonnei by pulsed field gel electrophoresis (PFGE). 2004. http://www.cdc.gov/pulsenet/protocols/ecoli_salmonella_shigella_protocols.pdf (26 April 2011, date last accessed).
Model system to evaluate the effect of ampD mutations on AmpC-mediated beta-lactam resistance
Schmidtke AJ, Hanson ND. Model system to evaluate the effect of ampD mutations on AmpC-mediated beta-lactam resistance. Antimicrob Agents Chemother 2006; 50: 2030-7.
Increased genome instability in Escherichia coli lon mutants: relation to emergence of multiple-antibiotic-resistant (Mar) mutants caused by insertion sequence elements and large tandem genomic amplifications
Nicoloff H, Perreten V, Levy SB. Increased genome instability in Escherichia coli lon mutants: relation to emergence of multiple-antibiotic-resistant (Mar) mutants caused by insertion sequence elements and large tandem genomic amplifications. Antimicrob Agents Chemother 2007; 51: 1293-303.