An Escherichia coli clinical strain resistant to all beta-lactams except carbapenems was isolated in a Greek hospital. Analysis of beta-lactamase content by isoelectric focusing, PCR assays specific for various bla genes, and DNA sequencing showed that the strain produced TEM-1, a Citrobacter freundii AmpC-related cephalosporinase, and CTX-M-3. The bla(CTX-M-3) gene was carried by a 120-kb plasmid that was readily transferable to a susceptible E. coli host.
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China Med Univ, Affiliated Hosp 1, Div Infect Dis, Shenyang, Peoples R ChinaChina Med Univ, Affiliated Hosp 1, Div Infect Dis, Shenyang, Peoples R China
Wu, Na
Chen, Bai Yi
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China Med Univ, Affiliated Hosp 1, Div Infect Dis, Shenyang, Peoples R ChinaChina Med Univ, Affiliated Hosp 1, Div Infect Dis, Shenyang, Peoples R China
Chen, Bai Yi
Tian, Su Fei
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China Med Univ, Affiliated Hosp 1, Dept Lab Med, Shenyang, Peoples R ChinaChina Med Univ, Affiliated Hosp 1, Div Infect Dis, Shenyang, Peoples R China
Tian, Su Fei
Chu, Yun Zhuo
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China Med Univ, Affiliated Hosp 1, Dept Lab Med, Shenyang, Peoples R ChinaChina Med Univ, Affiliated Hosp 1, Div Infect Dis, Shenyang, Peoples R China