What is Legionnaires' disease?
{{Infobox disease | name = Legionellosis | Image = Legionella_pneumophila_01.jpg | image_width = 240px | Caption = Image of ''L. pneumophila'', responsible for over 90% of Legionnaires' disease cases | field = [[Infectious disease]], [[pulmonology]] | DiseasesDB = 7366 | ICD10 = {{ICD10|A|48|1|a|30}}, {{ICD10|A|48|2|a|30}} | ICD9 = {{ICD9|482.84}} | ICDO = | OMIM = | MedlinePlus = 000616 | eMedicineSubj = med | eMedicineTopic = 1273 | MeshID = D007876 |Orphanet=549 }} '''Legionnaires' disease''' is a form of [[pneumonia]] caused by any type of ''Legionella'' [[bacteria]]. Over 90% of cases are caused by ''[[Legionella pneumophila]]''. The [[incubation period|length of time between exposure]] to the bacteria and the appearance of symptoms is generally two to ten days. It can be as much as 20 days.<ref>{{cite web|title=Legionella and the prevention of legionellosis|publisher=World Health Organization|url=http://www.who.int/water_sanitation_health/emerging/legionella.pdf|access-date=Mar 6, 2016}}</ref> People with Legionnaires' usually have [[fever]], chills, and a [[cough]]. Some also have [[muscle]] aches, [[headache]], tiredness, loss of [[appetite]], [[diarrhea]] or [[vomit]]ing. People of any age may have Legionnaires' disease. It is most common in middle aged and older people. ==References== <references/> {{Gram-negative proteobacterial diseases}} [[Category:Diseases caused by bacteria]] [[Category:Pulmonology]] {{biology-stub}}