The most noteworthy point observed in our studies is the extraordinary duration of life and the relatively meagre requirements for sustenance of Leptospira icteroides. It is conceivable that under natural conditions opportunities might arise for the prolonged existence of Leptospira icteroides, so that possibly after a lapse of years, the disease might reappear without introduction from outside...

Pathogenic Leptospira spp., the causative agents of leptospirosis, are slow-growing Gram-negative spirochetes. Isolation of Leptospira from clinical samples and testing of antimicrobial susceptibility are difficult and time-consuming. Here, we describe the development of a new solid medium that facilitates more-rapid growth of Leptospira spp. and the use of this medium to evaluate the Etest's p...

Pathogenic Leptospira transmits from animals to humans, causing the zoonotic life-threatening infection called leptospirosis. This infection is reported worldwide with higher risk in tropical regions. Symptoms of leptospirosis range from mild illness to severe illness such as liver damage, kidney failure, respiratory distress, meningitis, and fatal hemorrhagic disease. Invasive species of Lepto...

background : leptospirosis is an important re-emerging zoonotic disease in tropical and subtropical areas and acute febrile infection and a conveyable bacterial disease of animals and humans caused by pathogenic spirochetes of the genus leptospira. methods : five hundred and ninety seven serum samples (159 cattle, 142 sheep, 147 goats and 149 humans) were collected from center, southeast and no...

From 228 recent Leptospira isolates from mainland Portugal and Azorean wild mammals, 149 were characterized at the serovar level by monoclonal antibodies (MAbs), a quick serological method in epidemiological studies. In order to compare this antigenic information with that from new genetic techniques, a sample of isolates was analyzed through pulsed-field agarose gel electrophoresis (PFGE) (n=7...

BACKGROUND Although previous data indicate that the overall incidence of human leptospirosis in the Peruvian Amazon is similar in urban and rural sites, severe leptospirosis has been observed only in the urban context. As a potential explanation for this epidemiological observation, we tested the hypothesis that concentrations of more virulent Leptospira would be higher in urban than in rural e...

DNA relatedness was determined among 303 strains of Leptospira and Leptonema. Included in the analysis were reference strains from 228 well-characterized and recognized serovars. The study included 268 serovars from 29 named and one or more unnamed serogroups. The strains clustered into 17 DNA hybridization groups, representing 12 previously described species (292 strains) and five new genomosp...

leptospirosis is an important infectious disease of animals and humans caused by the pathogenicleptospires which are classified into one species of leptospira interrogans containing over 212 serovars. thisstudy was conducted to determine the prevalence of leptospira-induced abortions in tabriz (north-west ofiran) dairy herds and to determine the pathogenic leptospira serovars responsible. from ...