|Species/Subspecies:||Legionella pneumophila subsp. pneumophila|
|Etymology:||Genus name: small army.
Species epithet: lung loving.
Subspecies epithet: see Species epithet.
|Significance:||[Primarily in human medicine]|
|Type Strain:||Philadelphia 1 = ATCC 33152 = CCUG 9568 = NCTC 11192.|
||Greyish white mucous colonies (about 3 mm in diameter), which often forms a continuous streak.|
|Micromorphology:||Thin rods (0,3-0,9 x 2 µm), which are motile (most common) by means of a single polar flagellum (the bacteria are monotrichous).|
|Gram +/Gram -:||G-|
|Other Enzymes:||Hippuricase +, urease -|
|Fermentation of carbohydrates:||L. pneumophila does not ferment carbohydrates since it is an obligate aerobic bacterium.|
|Disease (English):||Legionellosis or Legionaires' disease|
|Clinical Picture:||High fever, chills, muscle aches, headaches and diarrhea.|
|Virulence Factors:||L. pneumophila has a type IV secretion system, which can translocate about 50 different effector proteins that are important for intracellular survival of this bacterium.|
|16S rRNA Seq.:|
||About 60 species have been described within genus Legionella, which is related to to genus Coxiella (although not that close).|
|Legislation:||The legionaires' disease is notifyable in Sweden.|