Biology:Legionella longbeachae
| Legionella longbeachae | |
|---|---|
Scientific classification 
| |
| Domain: | Bacteria |
| Phylum: | Pseudomonadota |
| Class: | Gammaproteobacteria |
| Order: | Legionellales |
| Family: | Legionellaceae |
| Genus: | Legionella |
| Species: | L. longbeachae
|
| Binomial name | |
| Legionella longbeachae McKinney et al. 1982
| |
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]
Compost and potting mix warning labels
| NCBI genome ID | 1393 |
|---|---|
| Ploidy | haploid |
| Genome size | 4.14 Mb |
| Number of chromosomes | 1 |
| Year of completion | 2009 |
Compost must be handled with care, damped down with water to reduce dust before handling, and use of a face mask covering the nose and mouth to reduce the risk of inhaling the dust is needed, especially for those at high risk from infection.
Studies advocate the introduction of an industry standard that ensures the use of face masks when handling potting mix and attaching masks and warning labels to potting mix bags sold to the public.[10]
Compost packaging in Australia has an L. longbeachae warning label. The New South Wales state government recommends that people reduce exposure to potting mix dust by following the manufacturers' warning present on potting mix labels, including:
- Wetting down the potting mix to reduce the dust
- Wearing gloves and a P2 mask when using potting mix
- Washing hands after handling potting mix or soil, and before eating, drinking or smoking[11]
Symptoms
Early symptoms include fever, chills, headache, shortness of breath, sometimes dry cough, and muscle aches and pain.[12]
Most people who breathe in the bacteria do not become ill. The risk of disease is increased with increased age and smoking, and in people with weakened immune systems.[12]
References
- ↑ "Comparative assessment of virulence traits in Legionella spp". Microbiology 149 (Pt 3): 631–41. 2003. doi:10.1099/mic.0.25980-0. PMID 12634332.
- ↑ "An outbreak of Legionella longbeachae infection in an intensive care unit?". J Hosp Infect 52 (4): 250–8. 2002. doi:10.1053/jhin.2002.1322. PMID 12473468.
- ↑ Korman, TM.; Fuller, A.; Ibrahim, J.; Kaye, D.; Bergin, P. (Jan 1998). "Fatal Legionella longbeachae infection following heart transplantation.". Eur J Clin Microbiol Infect Dis 17 (1): 53–5. doi:10.1007/BF01584366. PMID 9512185.
- ↑ 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. et al. (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. https://www.bbc.co.uk/news/health-11167176.
- ↑ "Isolation of Legionella longbeachae serogroup 1 from potting mixes". Appl Environ Microbiol 56 (1): 49–53. 1990. PMID 1968736.
- ↑ 9.0 9.1 9.2 9.3 O'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. PMID 16780608.
- ↑ Cramp, GJ.; Harte, D.; Douglas, NM.; Graham, F.; Schousboe, M.; Sykes, K. (Sep 2009). "An outbreak of Pontiac fever due to Legionella longbeachae serogroup 2 found in potting mix in a horticultural nursery in New Zealand". Epidemiol Infect 138 (1): 15. doi:10.1017/S0950268809990835. PMID 19781115.
- ↑ "Legionnaires disease Factsheet - NSW Department of Health". www.health.nsw.gov.au. http://www.health.nsw.gov.au/factsheets/infectious/legionnaires.html.
- ↑ 12.0 12.1 "Media Release: GARDEN ALERT: WARNING TO HANDLE POTTING MIX SAFELY". www.legislation.vic.gov.au. http://www.legislation.vic.gov.au/domino/Web_Notes/newmedia.nsf/b0222c68d27626e2ca256c8c001a3d2d/9468b874a232dce1ca256f93001a794f!OpenDocument.
External links
- Tasmanian Health and Human Services Legionella page
- Type strain of Legionella longbeachae at BacDive - the Bacterial Diversity Metadatabase
Wikidata ☰ Q6518170 entry
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