[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/legionellacontrol.com\/legionella\/legionella-species\/#Article","mainEntityOfPage":"https:\/\/legionellacontrol.com\/legionella\/legionella-species\/","headline":"How Many Legionella Species Exist & Which Ones are Dangerous?","name":"How Many Legionella Species Exist & Which Ones are Dangerous?","description":"While there are more than 50 different recognised Legionella species, less than half of those can cause illness in humans. However, while around 20 species are known to be harmful to us, just one has been identified as the cause of most outbreaks of Legionnaires\u2019 disease. Learn more ...","datePublished":"2018-09-11","dateModified":"2019-06-03","author":{"@type":"Person","@id":"https:\/\/legionellacontrol.com\/author\/stuart-dooner-2-2-2-2-2-2-2-2-2-2\/#Person","name":"Stuart Dooner","url":"https:\/\/legionellacontrol.com\/author\/stuart-dooner-2-2-2-2-2-2-2-2-2-2\/","identifier":4,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/7a2b9b1a1745c32a469ed1d92a5cf54dced2b19db2bd74c9782ee3aefa312b8a?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/7a2b9b1a1745c32a469ed1d92a5cf54dced2b19db2bd74c9782ee3aefa312b8a?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Legionella Control International","logo":{"@type":"ImageObject","@id":"https:\/\/legionellacontrol.com\/wp-content\/uploads\/2018\/12\/legionella-control-international-logo.jpg","url":"https:\/\/legionellacontrol.com\/wp-content\/uploads\/2018\/12\/legionella-control-international-logo.jpg","width":182,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/legionellacontrol.com\/wp-content\/uploads\/2018\/09\/how-many-legionella-species.jpg","url":"https:\/\/legionellacontrol.com\/wp-content\/uploads\/2018\/09\/how-many-legionella-species.jpg","height":252,"width":380},"url":"https:\/\/legionellacontrol.com\/legionella\/legionella-species\/","about":["Compliance","Guidance","Legionella"],"wordCount":0,"keywords":["Controlling Legionella","Legionella bacteria","legionella risk assessment","Legionella species","legionnaires disease"],"articleBody":""},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Legionella","item":"https:\/\/legionellacontrol.com\/legionella\/#breadcrumbitem"},{"@type":"ListItem","position":2,"name":"How Many Legionella Species Exist & Which Ones are Dangerous?","item":"https:\/\/legionellacontrol.com\/legionella\/legionella-species\/#breadcrumbitem"}]}]