Leptospira


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Related to Leptospira: Leptospira icterohaemorrhagiae

Leptospira

 [lep″to-spi´rah]
a genus of aerobic, finely coiled spirochete bacteria with hooked ends. L. inter´rogans is the causative agent of leptospirosis.

Leptospira

(lep'tō-spī'ră),
A genus of motile aerobic bacteria (order Spirochaetales) containing thin, tightly coiled organisms 6-20 mcm in length. They possess an axial filament, and one or both ends may be bent into a semicircular hook. They stain with difficulty except with Giemsa stain or silver impregnation. Associated with icterohemorrhagic fever. They include seven pathogens and three nonpathogenic species; the type species is Leptospira interrogans.
[lepto- + G. speira, a coil]

Leptospira

/Lep·to·spi·ra/ (-spi´rah) a genus of aerobic spirochete bacteria (family Leptospiraceae); all pathogenic strains (i.e., those that cause leptospirosis) are contained in the species L. inter´rogans, which is divided into several serogroups, which are in turn divided into serotypes.

leptospira

/lep·to·spi·ra/ an individual organism belonging to the genus Leptospira. leptospi´ral

Leptospira

[-spī′rə]
Etymology: Gk, leptos + speira, coil
a genus of the family Leptospiracceae, order Spirochaetales; tightly coiled microorganisms having spirals with hooked ends. The spirochete thrives in the urine of infected animals, especially rodents; is pathogenic to humans and other mammals; and may cause hepatitis, jaundice, skin hemorrhages, fever, renal failure, mental status changes, and muscular illness. See also leptospirosis.
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Leptospira interrogans

Lep·to·spi·ra

(lep'tō-spī'ră)
A genus of aerobic bacteria containing thin, tightly coiled organisms 6-20 mcm in length. Associated with icterohemorrhagic fever.
[lepto- + G. speira, a coil]

Leptospira

A genus of spiral micro-organisms of the order Spirochaetales. See also LEPTOSPIROSIS.

Leptospira

a genus of thin, coiled, motile bacteria that cannot be visualized with conventional bacteriological staining methods. They are usually observed by dark-field microscopy or detected in tissue sections by special (silver) stains. There are 11 species, of which L. interrogans, L. borgpetersenii, L. inadai, L. kirschneri, L. noguchii, L. weilii, and L. santaroseii are significant animal pathogens. Each species contains many serovars and different species may contain antigenically related serovars. Significant serovars include L. interrogans sv canicola, grippotyphosa, hardjoprajitno, icterohaemorrhagiae, pomona and zanoni, L. borgpetersenii sv hardjobovis, L. kirschneri sv grippotyphosa. Isolates can also be grouped on the basis of serogroups, which include Grippotyphosa, Pomona, Icterohaemorrhagiae, Canicola, Sejroe and Tarassovi. Serovars vary in their host specificity, their preferred host and their pathogenicity.
Two of the bacteria's characteristics, which are important in the epidemiology of the diseases that it causes, are its ability to survive in the environment in warm, moist and slightly alkaline conditions, and its survival in kidneys for long periods, with a resulting frequent and often long-term shedding in the urine.
Although the disease caused by each of the leptospirae has some differences in clinical and epidemiological manifestations in each of the species, there is still sufficient similarity for the diseases to be dealt with as leptospirosis.
References in periodicals archive ?
The Microscopic Agglutination test (MAT) was performed to determine the presence of leptospira antibodies in the positive and indeterminate samples of ELISA test.
Leptospira is a varied group of organisms containing more than 200 serovars that can cause leptospirosis, Alt says.
interrogans: Canicola, Grippothyphosa, Hardjo, Pomona, Icterohaemorrhagiae and Ballum using the microscopic agglutination test (MAT) in the Leptospira Research Laboratory of veterinary faculty of Tehran University.
Cytotoxic activities of Leptospira interrogans hemolysin SphH as a pore-forming protein on mammalian cells.
Bu nedenlerle, tavsanda leptospira enfeksiyonunun hic bir klinik ve laboratuar kanitinin oldugundan bahsedilmemesine ragmen evde tavsan beslenmesi leptospira enfeksiyonu ve bulasimi icin yeterli bir kanit olarak on plana cikarilmasi yerinde bir dusunce olmadigi kanaatindeyim.
Leptospirosis, is a worldwide zoonosis with protean clinical manifestations caused by the spirochete Leptospira interrogans.
fetus fetus y venerealis, Leptospira pomona, virus IBR-BVD, H somnus) en vaquillonas naturalmente desafiadas por servicio con toro infectado, confirmaron que ni las vaquillonas vacunadas ni los animales controles tuvieron un importante incremento en los niveles de anticuerpos sistemicos (12).
18) A number of outbreaks have been related to increase in rainfall, a known factor favouring the survival and transmission of the leptospira spirochete which is shed in animal urine (most commonly rodents), contaminating water and soil.
Benzer bulgulara yol acabilen leishmania, leptospira ve toxoplasmozis icin bakilan serolojik testler de olumsuz bulunmustur.
Blood was analyzed for the presence of antigens against Leptospira, infectious bovine rhinotracheitis virus, bovine viral diarrhea virus, parainfluenza-3 virus, and bovine respiratory syncytial virus in 2005; analysis was conducted for Brucella abortus in 2005, 2006, and 2007.
To date, initial results indicating the presence of Leptospira in 10 percent of the tested animals have not been confirmed.