4Chang FY,Siu LK,Fung CP,Huang MH,et al.Diversity of SHV and TEMβ-lactamases in Klebsiella pneumoniae:gene evolution in Northern Taiwan and two novel β-lactamases,SHV-25 and SHV -26[J].Antimicrob.Agents Chemother,2001,45:2407-2413.
6Wang H,Kelkar S,Wu W,et al.Clinical isolates of Enterobacteriaceae producing extended-spectrum β-lactamases:prevalence of CTX-M-3 at a hospital in China[J].Antimicrob.Agents Chemother,2003,47(2):790-793.
4Landman DM, Quale J, Mayorga D, et al. Citywide clonal outbreak of multiresistant acinetobacter baumannii and pseudomonas aeruginosa in Brooklyn, NY. Arch Intern Med,2002,162∶1515-1520.
5Vahaboglu H, Ozturk R, Aygun G, et al.Widespread detection of PER-1-type extended-spectrum beta-lactamases among nosocomial acinetobacter and Pseudomonas aeruginosa isolates in Turkey: a nationwide multicenter study. Antimicro Agents Chemother, 1997,41∶2
6Chu YW, Afzal-Shah M, Houang ETS, et al. IMP-4, a novel metallo-β-lactamase from nosocomial acinetobacter spp. collected in Hong Kong between 1994 and 1998. Antimicro Agents Chemother, 2001,45∶710-714.
7Afzal-Shah M, Woodford N, Livermore DM. Characterization of OXA-25, OXA-26, and OXA-27, molecular class D β-lactamases associated with carbapenem resistance in clinical isolates of acinetobacter baumannii. Antimicro Agents Chemother, 2001,45∶583-588.
8Nuesch-Inderbinen MT, Kayser FH, Hachler H. Survey and molecular genetics of SHV beta-lactamases in enterobacteriaceae in Switzerland: two novel enzymes, SHV-11 and SHV-12. Antimicro Agents Chemother, 1997, 41∶943-949.
9Bradford PA.Extended-spectrum β-lactamases in the 21st century: characterization, epidemiology, and detection of this important resistance threat. Clin Microbiol Rev, 2001,14∶933-951.
10Laksai Y, Severino M, Perilli M, et al.First identification of an SHV-12 extended-spectrum β-lactamase in Klebsiella pneumoniae isolated in Italy. J Antimicro Chemother,2000,45∶349-351.
