Leptospira (Ancient Greek: leptos, 'fine, thin' and Latin: spira, 'coil')[1] is a genus of spirochaete bacteria, including a small number of pathogenic and saprophytic species.[2] Leptospira was first observed in 1907 in kidney tissue slices of a leptospirosisvictim who was described as having died of "yellow fever".[3]
Pathogenic Leptospira
- Leptospira alstonii Smythe et al. 2013 ["Leptospira alstoni" Haake et al. 1993]
- Leptospira interrogans (Stimson 1907) Wenyon 1926 emend. Faine and Stallman 1982 ["Spirochaeta interrogans" Stimson 1907; "Spirochaeta nodosa" Hubener & Reiter 1916; "Spirochaeta icterohaemorrhagiae" Inada et al. 1916; "Spirochaeta icterogenes" Uhlenhuth & Fromme 1916; "Leptospira icteroides" Noguchi 1919]
- Leptospira kirschneri Ramadass et al. 1992
Non-pathogenic Leptospira
- Leptospira biflexa (Wolbach and Binger 1914) Noguchi 1918 emend. Faine and Stallman 1982 ["Spirochaeta biflexa" Wolbach & Binger 1914; "Ancona ancona"; "Canela canela"; "Jequitaia jequitaia"]
- Members of Leptospira are also grouped into serovars according to their antigenic relatedness. There are currently over 200 recognized serovars. A few serovars are found in more than one species of Leptospira.
One or both ends of the spirochete are usually hooked. Because they are so thin, live Leptospiraare best observed by darkfield microscopy.
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| Scanning electron micrograph of Leptospira interrogans |
https://en.wikipedia.org/wiki/Leptospira
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