title: Distinct difference of flaA genotypes of Legionella pneumophila between isolates from bath water and cooling tower water.
abstract: To investigate the genetic difference of Legionella pneumophila in human-made environments, we collected isolates of L. pneumophila from bath water (n = 167) and cooling tower water (n = 128) primarily in the Kanto region in 2001 and 2005. The environmental isolates were serogrouped and sequenced for a target region of flaA. A total of 14 types of flaA genotypes were found: 10 from cooling tower water and nine from bath water. The flaA genotypes of isolates from cooling tower water were quite different from those of bath water.
authors.affiliation: Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, Japan. jmaekawa@nih.go.jp
authors.forename: Junko
authors.initials: J
authors.lastname: Amemura-Maekawa
authors.forename: Fumiaki
authors.initials: F
authors.lastname: Kura
authors.forename: Bin
authors.initials: B
authors.lastname: Chang
authors.forename: Atsuko
authors.initials: A
authors.lastname: Suzuki-Hashimoto
authors.forename: Masayuki
authors.initials: M
authors.lastname: Ichinose
authors.forename: Takuro
authors.initials: T
authors.lastname: Endo
authors.forename: Haruo
authors.initials: H
authors.lastname: Watanabe
mesh_terms: D000389:Air Conditioning / Q000295:instrumentation*; D000595:Amino Acid Sequence; D015373:Bacterial Typing Techniques; D001483:Base Sequence; D005408:Flagellin / Q000737:chemistry / Q000235:genetics*; D005838:Genotype; D006801:Humans; D016952:Legionella pneumophila / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D012703:Serotyping; D014871:Water Microbiology; D014881:Water Supply
chemical_list: D005408:Flagellin; C067138:flaA protein, bacteria