Results: 37

Causes of abortion in dairy cows in Uruguay

Pesqui. vet. bras; 40 (5), 2020
A case series study was conducted to determine the frequency of causes of abortion in dairy cattle in Uruguay. The sample size of 102 cases was composed of 53 fetuses, 35 fetuses with placentas, and 14 placentas without an associated fetus. All cases underwent gross and microscopic pathologic examination...

High proportion of cattle and sheep seropositive and renal carriers of Leptospira sp. under semiarid conditions

Rev. bras. ciênc. vet; 27 (1), 2020
The aims of this study were to perform serological and molecular detection of Leptospira sp. infection in cattle and sheep under semiarid conditions. Based on a preliminary study performed in our research group, we selected six rural properties showing a positivity ≥ 60% for Sejroe serogroup with titer...

Epidemiological relevance of dogs for the prevention of Toxoplasma gondii, Neospora caninum and Leptospira spp

Abstract This study evaluated the seroprevalence of Toxoplasma gondii, Neospora caninum and Leptospira spp. in dogs from Foz do Iguaçu, Paraná, Brazil. Indirect immunofluorescent antibody test was used to detect antibodies anti-T.gondii and anti-N. caninum. Immunoenzymatic assay and microscopic serum a...

Caracterización epidemiológica de la infección por Leptospira spp. en caballos de trabajo y en personas ocupacionalmente expuestas en seis unidades de la Policía Nacional de Colombia

Biomédica (Bogotá); 39 (supl.1), 2019
Resumen Introducción. Los caballos de trabajo de la Policía Nacional tienen un estrecho contacto con sus manejadores y la población en general durante las actividades recreativas y de patrullaje, lo cual puede favorecer la transmisión de la leptospirosis en los caballos y el personal ocupacionalment...

Soropositividade para Leptospira sp. e sorogrupos predominantes em cães do Pantanal Brasileiro

Rev. bras. ciênc. vet; 26 (2), 2019
Em face à grande importância que a leptospirose possui no contexto sanitário mundial, tanto no aspecto humano como animal, este estudo teve por objetivo realizar a pesquisa de anticorpos anti-Leptospira sp. pela técnica de Soroaglutinação Microscópica (SAM) em 429 amostras de soros de cães proven...

Coxiella burnetii associated with BVDV (Bovine Viral Diarrhea Virus), BoHV (Bovine Herpesvirus), Leptospira spp, Neospora caninum, Toxoplasma gondii and Trypanosoma vivax in reproductive disorders in cattle

Abstract This is a cross-sectional study to assess the presence of antibodies in ruminants against selected pathogens associated with reproductive disorders in cattle in four Brazilian states, including the zoonotic agent Coxiella burnetii. The used tests were Virus Neutralization Assay for IBR and BVD, ...

Occurrence of serological reactions for serogroup Sejroe (CTG and Prajtino) in female buffalo in the state of Pernambuco, Brazil

Braz. j. microbiol; 49 (4), 2018
ABSTRACT The objective of this study was to evaluate the occurrence of anti-Leptospira spp. antibodies in female buffalo in the state of Pernambuco. A total of 123 female buffalo blood samples were collected from five properties distributed in the state of Pernambuco. The microscopic agglutination test w...

Development and validation of a modified TaqMan based real-time PCR assay targeting the lipl32 gene for detection of pathogenic Leptospira in canine urine samples

Braz. j. microbiol; 49 (3), 2018
Abstract A modified TaqMan real-time polymerase chain reaction targeting a 138 bp fragment within the lipl32 gene was developed to identify exclusively pathogenic Leptospira spp. in dog urine samples. Thirty-five samples from dogs with suspected clinical leptospirosis and 116 samples from apparently heal...

Efficacy of leptospiral commercial vaccines on the protection against an autochtonous strain recovered in Brazil

Braz. j. microbiol; 49 (2), 2018
Abstract In swine and bovines, leptospirosis prevention and control is carried out via vaccination of susceptible animals using bacterins. However, the efficiency of leptospirosis vaccines has been questioned. This work aimed to investigate the potency of five leptospirosis vaccines sold commercially in ...

Serological and molecular detection of leptospira spp in dogs

Abstract INTRODUCTION: This study aimed to detect anti-Leptospira spp antibodies and Leptospira DNA in domestic dogs. METHODS: Blood and urine from 106 dogs were evaluated by microscopic agglutination test (MAT) and polymerase chain reaction (PCR), respectively. RESULTS: Six (5.7%) and one (1%) ani...