5Cartelle M,del Mar Tomas M,Molina F,et al.High-level resistance to ceftazidime conferred by a novel enzyme,CTX-M-32,derived from CTX-M-1 through a single Asp240-Gly substitution[J].Antimicrob Agents Chemother,2004,48(6):2308-2313.
6Bonnet R,Sampaio JL,Labia R,et al.A novel CTX-M beta-lactamase (CTX-M-8) in cefotaxime-resistant Enterobacteriaceae isolated in Brazil[J].Antimicrob Agents Chemother,2000,44(7):1936-1942.
8Poirel L,Naas T,Le Thomas I,et al.CTX-M-type extended-spectrum beta-lactamase that hydrolyzes ceftazidime through a single amino acid substitution in the omega loop[J].Antimicrob Agents Chemother,2001,45(12):3355-3361.
9Boyd DA,Tyler S,Christianson S,et al.Complete nucleotide sequence of a 92-kilobase plasmid harboring the CTX-M-15 extended-spectrum beta-lactamase involved in an outbreak in long-term-care facilities in Toronto,Canada[J].Antimicrob Agents Chemother,2004,48(10):3758-3764.
4Clinical and Laboratory Standards Institute. M100-S20 Per- form-ance standards for antimicrobial susceptibility testing twentieth informational supplement[S] CLSI,2010.
5Lin Li,Zhi-Gang Jiang,Li-Ning Xia,Jian-Zhong Shen,Lei Dai,Yang Wang,Si-Yang Huang,Cong-Ming Wu.Characterization of antimicrobial resistance and molecular determinants of beta-lactamase in Escherichia coli isolated from chickens in China during 1970–2007[J]. Veterinary Microbiology . 2010 (3)
6Thi Thu Hao Van,James Chin,Toni Chapman,Linh Thuoc Tran,Peter J. Coloe.Safety of raw meat and shellfish in Vietnam: An analysis of Escherichia coli isolations for antibiotic resistance and virulence genes[J]. International Journal of Food Microbiology . 2008 (3)
7Clinical and Laboratory Standards Institute. Performance Standards for Antimicrobial Susceptibility testing;Twenty-firsth Informational supplement[S].CLSI document M100-S21.Wayne,PA:CLSI,2011.