Lipopolysaccharide is the major surface antigen of Leptospira. Variation in LPS structure is the basis for the more than 200 serovars that have been identified. Despite the importance of this antigen in immunity and diagnostics, there is relatively little known about the genetics and chemistry of leptospiral LPS, as compared to some members of the Enterobacteriaceae. The nucleotide sequence of ...

The importance of cats in the Leptospira epidemiology is due to the possibility of transferring leptospirosis to wild and domesticated animals. The purpose of this survey was to determine the prevalence of Leptospira infection in shorthair cats in different location of Mashhad, Iran. Totally, 147 blood samples were taken from 42 (28.57%), 52 (35.37%) and 53 (36.05%) households, stray and cats w...

leptospirosis is a bacterial zoonotic disease, which can induce hepatic lesions. photosensitization (ps)maybe is the result of accumulation of photodynamic agents in unpigmented area of the skin exposed tosunlight which occurred due to hepatic lesions. an outbreak of leptospirosis was occurred in a dairy cattleherd complex with 760 dairy milking cows in march (1990). totally, 412 cows (54.21%) ...

Leptospires have never been recovered from goats in Brazil. Serum samples were obtained from 248 goats from Rio de Janeiro and from the seroreactive animals, urine samples were collected and processed for Leptospira isolation. A total of 52 positive reactions were observed, corresponding to 20.9% of the samples. The most prevalent reactions were to serovars Hardjo (36.5%), Shermani (30.8%), Ict...

Evaluation of Type 1 Immune Response in Naïve and Vaccinated Animals following Challenge with Leptospira borgpetersenii Serovar Hardjo: Involvement of WC1 and CD4 T Cells Brian M. Naiman, Seth Blumerman, David Alt, Carole A. Bolin, Rachel Brown, Richard Zuerner, and Cynthia L. Baldwin* Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts 01003; Bacte...

BACKGROUND Prior to the present study, the seroprevalence of leptospirosis in Irish suckler herds was unknown. In this study, we describe the herd and animal-level prevalence of Leptospira Hardjo infection in the Irish suckler cattle population. For the purposes of the study, the 26 counties of the Republic of Ireland were divided into 6 regions from which a representative number of herds were ...

In order to investigate the seroprevalence of leptospirosis in traditional dairy farms, a serological study was conducted in Gilan province. For this study,, a total of 205 serum samples were randomly collected from nine districts of this province. All serum samples were serologically tested by the standard MAT using live antigens representing the following Leptospira interrogans serovars: Grip...