Distribution of Legionella species from environmental water sources in South Korea for 2008. (A) L. pneumophila; (B) Non-L. pneumophila species. “Non-serogroup*” comprised L. pneumophila isolates not identified as members of any serogroup, and “other Legionella species**” comprised Legionella isolates not identified as members of any known species. sg 11, sg 13, sg 14, and sg 15 accounted for 0.2% each, and sg 12 accounted for 0.8%.