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Any of various gram-negative, spirochete bacteria of the genus Leptospira that are either free-living or parasitic, including the causative agent of leptospirosis.

[New Latin Leptospīra, genus name; see leptospirosis.]


(Microbiology) any of various spirochaete bacteria which cause leptospirosis
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The MAT was performed with a panel of live leptospire reference cultures obtained from the Royal Tropical Institute (World Health Organization/Food and Agriculture Organization of the United Nations Collaborating Centre for Reference and Research on Leptospirosis) in Amsterdam (Australis, Autumnalis, Bataviae, Canicola, Celledoni, Grippotyposa, Icterohaemorrhagiae, Javanica, Pomona, Pyrogenes, Hardjoprajitno, Patoc, Tarassovi and Djasiman) and from the IMR (Melaka, Terengganu, Sarawak, Lai, Hardjobovis and Copenhagani).
Leptospire species determination was successful for 85 (83%) patients and corresponded to 1 of the following 6 pathogenic species: L.
So, in the present study, an IgM-Dot ELISA in a strip form for the detection of leptospire specific IgM antibodies has been standardized and evaluated.
MAT uses whole leptospire as antigen and detects both lg M and lg G antibodies.
It is included in a group of proteins that has not yet been described in the leptospire OMP family, and its function is still undetermined (CULLEN et al.
All patients had blood samples collected at the hospital for leptospire culture and serologic testing; convalescent-phase serum samples were obtained during follow-up for 509 (73%) patients.
Tropical climates provide ideal conditions for leptospires to survive and transmission is exacerbated during high rainfall and flooding when bacteria are widely disseminated.
The leptospires are detectable in the blood stream, decrease until 15 days (72) and (2) the start in the second week after the onset of symptoms, and the antibodies usually persist for several months (6).