Leptospirosis is a zoonosis that affects several species of domestic and wild animals and is an important cause of economic losses in cattle in Brazil. In this study, we determined the prevalence of bovine leptospirosis in the Triângulo Mineiro region, Minas Gerais, Brazil, identified the most frequent serovars of Leptospira interrogans, and examine the renal pathological changes associated with the disease. Sa...
Leptospirosis in sheep is often underestimated, and leads to great economic losses for the sheep farming industry. The aim of this study was to evaluate the humoral immune response in pregnant ewes, after the injection of a commercial polyvalent vaccine for leptospirosis, and to observe the transmission of anti-Leptospira antibodies through the colostrum to the offspring. For this, 24 pregnant ewes were vaccina...
FAPEMIG - Fundação de Amparo a Pesquisa do Estado de Minas Gerais; Leptospirose é uma zoonose causada por bactérias do gênero Leptospira spp. Existem relatos de isolamento desta bactéria no trato genital de fêmeas, relacionado à abortamento e infertilidade no rebanho bovino. Já se sabe que a Leptospira presente nos órgãos reprodutivos de bovinos causa danos teciduais principalmente pela vasculite. Além disso, a...
Leptospirosis is a zoonotic disease caused by a bacterium that can live a long time in appropriate environmental conditions. Biofilms are aggregations of microorganisms, has a defined architecture, and provides an ideal environment for the exchange of genetic material between cells, beyond to providing protection, temperature resistance and antimicrobial. As it happens with other spirochetes, the leptospira can...
The white-eyed parakeet (Aratinga leucophthalma), also known in Brazil as "periquitão-maracanã," "aratinga-de-bando," "araguaí" and "maritaca," belongs to the family Psittacidae. The fungal genus Malassezia, which lives on the surface of the skin and mucosae of some mammals and birds, is a commensal organism that may sometimes act as a pathogen. This paper describes the presence of Malassezia spp at the edge of...
The objective of this research was to compare the results obtained by the Microscopic Agglutination Test (MAT) and indirect ELISA using outer membrane proteins (OMP) of the serovar Hardjo as antigen (ELISA/OMP-Hardjo). Ninety-three samples of blood serum from 3 to 6-year-old cattle of both sexes with no history of vaccination for leptospirosis were used. To perform the MAT, live cultures of 14 Leptospira serova...