Legionella longbeachae is one species of the family Legionellaceae. It was first isolated from a patient in Long Beach, California. It is found predominantly in potting soil and compost.[citation needed] Human infection from L. longbeachae is particularly common in Australia,[1][2][3] but cases have been documented in other countries including the United States,[4] Japan,[5] Greece[6] and the UK.[7]
Like other Legionella species, person-to-person transmission has not been documented, but unlike other species, the primary transmission mode has not been proven, but likely is inhalation or aspiration of dust from contaminated compost or soil that contains the organism causing legionellosis.[8]
Modes of transmission include poor hand-washing practices after gardening, long-term smoking, and being near dripping, hanging flower pots.[9] Awareness of a possible health risk with potting mix protected against illness.[9] Inhalation and ingestion are possible modes of transmission.[9] Exposure to aerosolized organisms and poor gardening hygiene may be important predisposing factors to L. longbeachae infection.[9]
^Alli OA, Zink S, von Lackum NK, Abu-Kwaik Y (2003). "Comparative assessment of virulence traits in Legionella spp". Microbiology. 149 (Pt 3): 631–41. doi:10.1099/mic.0.25980-0. PMID 12634332.
^Grove DI, Lawson PJ, Burgess JS, Moran JL, O'Fathartaigh MS, Winslow WE (2002). "An outbreak of Legionella longbeachae infection in an intensive care unit?". J Hosp Infect. 52 (4): 250–8. doi:10.1053/jhin.2002.1322. PMID 12473468.
^Centers for Disease Control and Prevention (CDC) (Sep 2000). "Legionnaires' disease associated with potting soil--California, Oregon, and Washington, May-June 2000". MMWR Morb Mortal Wkly Rep. 49 (34): 777–8. PMID 10987244.
^Kubota, M.; Tomii, K.; Tachikawa, R.; Harada, Y.; Seo, R.; Kaji, R.; Takeshima, Y.; Hayashi, M.; Nishimura, T. (Sep 2007). "[Legionella longbeachae pneumonia infection from home garden soil]". Nihon Kokyuki Gakkai Zasshi. 45 (9): 698–703. PMID 17929472.
^Velonakis, EN.; Kiousi, IM.; Koutis, C.; Papadogiannakis, E.; Babatsikou, F.; Vatopoulos, A. (Sep 2009). "First isolation of Legionella species, including L. pneumophila serogroup 1, in Greek potting soils: possible importance for public health". Clin Microbiol Infect. 16 (6): 763–6. doi:10.1111/j.1469-0691.2009.02957.x. PMID 19747214.
^"Gardeners warned about Legionnaire's risk". BBC News. 2010-09-02.
^Steele TW, Lanser J, Sangster N (1990). "Isolation of Legionella longbeachae serogroup 1 from potting mixes". Appl Environ Microbiol. 56 (1): 49–53. PMC 183249. PMID 1968736.
^ abcdO'Connor, BA.; Carman, J.; Eckert, K.; Tucker, G.; Givney, R.; Cameron, S. (Jan 2007). "Does using potting mix make you sick? Results from a Legionella longbeachae case-control study in South Australia". Epidemiol Infect. 135 (1): 34–9. doi:10.1017/S095026880600656X. PMC 2870547. PMID 16780608.
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