A DNA probe is described for the diagnostic and taxonomic identification of the North American cattle pathogen Leptospira interrogans genotype hardjo-bovis. The probe is specific for this genotype and does not hybridize to genomic DNA of any other leptospire pathogen commonly found in North America.

Leptospirosis is the most widespread zoonotic disease in the world. It is caused by pathogenic spirochetes of the genus Leptospira spp. and is maintained in nature through chronic renal infection of carrier animals. Rodents and other small mammals are the main reservoirs. Information on leptospirosis in marine mammals is scarce; however, cases of leptospirosis have been documented in pinniped p...

The addition of 2% pooled rabbit serum to semi-solid commercial EMJH medium with EMJH enrichment and 0,5 mg of 5-fluorouracil per ml was found to enhance the growth rate and success of isolation of Leptospira interrogans serovar hardjo from bovine urine. Cultures made on media without serum had to be kept for more than 130 days before being discarded as negative.

In 2014, Leptospira interrogans strain CUDO8 was isolated from the urine of an asymptomatic dog in Thailand. Here we report the draft genome sequence of this pathogenic bacterium.

Leptospirosis, a major health problem worldwide, is known to be endemic in the northeastern part of Thailand with the risk of infection by exposure to pathogenic Leptospira in contaminated aquatic environment. A method based on PCR-hybridization detection of pathogenic Leptospira in water was established. The method included filtration of water sample through membrane filters of two pore sizes,...

Fourteen typical cases of yellow fever were studied in northern Peru during an epidemic occurring in 1920, nine in Payta in March and April, and five in Morropon and Piura in April and May. The method of investigation was similar to that previously employed, but as the laboratory facilities were very meager certain changes were required. Although in Payta the work was handicapped by the lack of...

The MICs of 24 antimicrobials for 26 Leptospira spp. serovars were determined using a broth microdilution technique. The MICs at which 90% of isolates tested were inhibited (MIC(90)s) of cefepime, imipenem-cilastatin, erythromycin, clarithromycin, and telithromycin were all /=3.13 microg...

The objectives were to assess incidence of pregnancy losses, associate this outcome with immunization programs against reproductive diseases, and evaluate the effects of vaccination against bovine herpesvirus-1 (BoHV-1), bovine viral diarrhea virus (BVDV), and Leptospira spp., on reproductive efficiency of Brazilian cow-calf operations. In experiment 1, 7614 lactating Nelore cows from 18 ranche...

background: timely diagnosis of leptospirosis is essential for early and effective treatment, for there are many differential diagnoses for it.. leptospiral researchers have an increasing interest in developing new serological methods with recombinant antigens to improve the leptospirosis diagnosis. several serological tests have been developed for the proper diagnosis of leptospirosis. objecti...