title: Isolation of quinolone-resistant Escherichia coli found in major rivers in Korea.
abstract: Twenty isolates resistant to seven quinolones were isolated from major rivers in Korea. All isolates had three mutations, Ser83-->Leu and Asp87-->Asn in GyrA and Ser80-->Ile or Ser80-->Arg in ParC and three isolates had an additional mutation Glu84-->Gly or Glu84-->Val in ParC. In addition, a clonal spread was not found in these isolates.
authors.affiliation: Culture Collection of Antimicrobial Resistant Microbes, Department of Biology, Seoul Women's University, Republic of Korea.
authors.forename: Dahye
authors.initials: D
authors.lastname: Jung
authors.forename: Min Young
authors.initials: MY
authors.lastname: Lee
authors.forename: Jung Min
authors.initials: JM
authors.lastname: Kim
authors.forename: Je Chul
authors.initials: JC
authors.lastname: Lee
authors.forename: Dong Taek
authors.initials: DT
authors.lastname: Cho
authors.forename: Yeonhee
authors.initials: Y
authors.lastname: Lee
mesh_terms: D000818:Animals; D000890:Anti-Infective Agents / Q000494:pharmacology*; D027101:DNA Topoisomerase IV / Q000235:genetics; D024881:Drug Resistance, Bacterial; D004926:Escherichia coli / Q000187:drug effects* / Q000235:genetics / Q000302:isolation & purification*; D006801:Humans; D007723:Korea; D008826:Microbial Sensitivity Tests; D009154:Mutation; D015363:Quinolones / Q000494:pharmacology*; D045483:Rivers / Q000382:microbiology*
chemical_list: D000890:Anti-Infective Agents; D015363:Quinolones; D027101:DNA Topoisomerase IV