Dennis PJ, Brenner DJ, Thacker WL, Wait R, Vesey G, Steigerwalt AG, et al. Five new Legionella species isolated from water. Int J Syst Bacteriol. 1993;43:329–37.
Costa J, Tiago I, Da Costa MS, Veríssimo A. Presence and persistence of Legionella spp. in groundwater. Appl Environ Microbiol. 2005;71:663–71.
Yabuuchi E, Agata K. An outbreak of Legionellosis in a new facility of hot spring bath in Hiuga city (in Japanese). Kansenshogaku Zassi. 2004;78:90–8.
Okada M, Kawano K, Kura F, Amemura-Maekawa J, Watanabe H, Yagita K, et al. The largest outbreak of legionellosis in Japan associated with spa baths: epidemic curve and environmental investigation (in Japanese). Kansenshogaku Zassi. 2005;79:365–74.
Kuroki H, Miyamoto H, Fukuda K, Iihara H, Kawamura Y, Ogawa M, Wang Y, Ezaki T, Taniguchi H. Legionella impletisoli sp. nov. and Legionella yabuuchiae sp. nov., isolated from soils contaminated with industrial wastes in Japan. Syst Appl Microbiol. 2007;30:273–9.
Orrison LH, Cherry WB, Tyndall RL, Fliermans CB, Gough SB, Lambert MA, McDougal LK, Bibb WF, Brenner DJ. Legionella oakridgensis: unusual new species isolated from cooling tower water. Appl Environ Microbiol. 1983;45:536–45.
Thompson JD, Higgins DG, Gibson TJ. CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, positions-specific gap penalties and weight matrix choice. Nucleic Acids Res. 1994;22:4673–80.
Hall TA. BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows 95/98 NT. Nucleic Acids Symp Ser. 1999;41:95–8.
Kimura M. A simple method for estimating evolutionary rates of base substitution through comparative studies of nucleotide sequences. J Mol Evol. 1980;16:111–20.
Saitou N, Nei M. The neighbor-joining method: a new method for reconstructing phylogenetic trees. Mol Biol Evol. 1987;4:406–25.
Felsenstein J. Confidence limits on phylogenies: an approach using the bootstrap. Evolution. 1985;39:783–91.
Miyamoto H, Taniguchi H, Yoshida S. A simple qualitative assay for intracellular growth of Legionella pneumophila within Acanthamoeba culbertsoni (in Japanese). Kansenshogaku Zassi. 2003;77:343–5.
Chávez LA, Balamuth W, Gong T. A light and electron microscopical study of a new, polymorphic free-living amoeba, Phreatamoeba balamuthi n. g., n. sp. J Protozool. 1986;33:397–404.
Horwitz MA. Characterization of avirulent mutant Legionella pneumophila that survive but do not multiply within human monocytes. J Exp Med. 1987;166:1310–28.
Furuhata K, Hara M, Yoshida S, Fukuyama M. Distribution of Legionella spp. in hot spring baths in Japan (in Japanese). Kansenshogaku Zassi. 2004;78:710–6.
Isobe J, Wstahiki M, Shimizu M, Shima T, Kimata K, Kurata T. Isolation of Legionella species from public bath water in Toyama prefecture, 2006 (in Japanese). Annu Rep Toyama Inst Health. 2007;30:110–4.
Wayne LG, Brenner DJ, Colwell RR, Grimont PAD, Kandler O, Krichevsky MI, et al. Report of the ad hoc committee on reconciliation of approaches to bacterial systematics. Int J Syst Bacteriol. 1987;37:463–4.
Stackebrandt E, Goebel BM. Taxonomic note: a place for DNA:DNA reassociation and 16S rRNA sequence analysis in the present species definition in bacteriology. Int J Syst Bacteriol. 1994;44:846–9.
Albers U, Reus K, Shuman HA, Hilbi H. The amoebae plate test implicates a paralogue of IpxB in the interaction of Legionella pneumophila with Acanthamoeba castellanii. Microbiology. 2005;151:167–82.
Dowling JN, Saha AK, Glew RH. Virulence factors of the family Legionellaceae. Microbiol Rev. 1992;56:32–60.