Leptospira
Mostrando 25-36 de 636 artigos, teses e dissertações.
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25. 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
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 healthy dogs were tested for presence of leptospiral DNA us
Braz. J. Microbiol.. Publicado em: 2018-09
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26. 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%) animals were positive by MAT and PCR, respectively. CONCL
Rev. Soc. Bras. Med. Trop.. Publicado em: 2018-06
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27. Detection of antibodies against Leptospira spp in free-living marsupials caught in the Eastern Amazon
Abstract INTRODUCTION: Serological surveys are important to assess the health status of wild animals. In this study, antibodies against Leptospira spp, causal agents of leptospirosis, were detected in free-living marsupials in the State of Pará, Brazil. METHODS: Nineteen blood samples collected from marsupials in the municipalities of Peixe-Boi, Viseu,
Rev. Soc. Bras. Med. Trop.. Publicado em: 2018-06
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28. Efficacy of leptospiral commercial vaccines on the protection against an autochtonous strain recovered in Brazil
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 Brazil, challenging the animals with one autochthonous
Braz. J. Microbiol.. Publicado em: 2018-06
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29. Soropositividade e fatores de risco para leptospirose, toxoplasmose e neosporose na população canina do Estado da Paraíba
RESUMO: Objetivou-se com este trabalho determinar a frequência de animais soropositivos para Leptospira spp., Toxoplasma gondii e Neospora caninum em cães do Estado da Paraíba, Nordeste do Brasil, bem como identificar fatores de risco. Foram amostrados 1.043 soros de cães procedentes de cinco centros urbanos considerados polos regionais: João Pessoa, Ca
Pesq. Vet. Bras.. Publicado em: 2018-05
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30. Análise sociodemográfica e ambiental para ocorrência de anticorpos antiLeptospira em cães de Teresina, Piauí, Brasil
Resumo A leptospirose é uma zoonose mundial cuja transmissão está interligada por múltiplos fatores na interface homem-animal-ecossistema. Objetivou-se com este estudo avaliar os fatores de risco para a ocorrência de anticorpos antiLeptospira em cães na capital Teresina (PI), e determinar sua distribuição espacial. Amostras sanguíneas de 558 cães f
Ciênc. saúde coletiva. Publicado em: 2018-05
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31. Caracterização epidemiológica da leptospirose suína em criações não tecnificadas do semiárido brasileiro
RESUMO: Este estudo foi realizado em suínos do município de Mossoró, Rio Grande do Norte, com o objetivo de caracterizar epidemiologicamente a leptospirose suína em criações não tecnificadas do semiárido brasileiro. Para isso, foi realizado diagnóstico sorológico da infecção pela técnica de soroaglutinação microscópica (SAM), sendo as amostra
Pesq. Vet. Bras.. Publicado em: 2018-04
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32. Genomic characterisation of Leptospira inadai serogroup Lyme isolated from captured rat in Brazil and comparative analysis with human reference strain
Leptospira inadai is classified as a species of the Leptospira intermediate group that has been poorly studied due to its apparent insignificance to human and animal health. Nevertheless, over the last two decades the species has been described in human cases in India and in carrier animals in Ecuador. Here, we present the first identification and genomic ch
Mem. Inst. Oswaldo Cruz. Publicado em: 12/03/2018
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33. Whole-genome sequencing of Leptospira interrogans from southern Brazil: genetic features of a highly virulent strain
BACKGROUND Leptospirosis is the most widespread zoonotic disease. It is caused by infection with pathogenic Leptospira species, of which over 300 serovars have been described. The accurate identification of the causative Leptospira spp. is required to ascertain the pathogenic status of the local isolates. OBJECTIVES This study aimed to obtain the complete
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-02
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34. Genome of Leptospira borgpetersenii strain 4E, a highly virulent isolate obtained from Mus musculus in southern Brazil
A previous study by our group reported the isolation and characterisation of Leptospira borgpetersenii serogroup Ballum strain 4E. This strain is of particular interest because it is highly virulent in the hamster model. In this study, we performed whole-genome shotgun genome sequencing of the strain using the SOLiD sequencing platform. By assembling and ana
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-02
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35. Comparative genomics of pathogenic Leptospira interrogans serovar Canicola isolated from swine and human in Brazil
Leptospira interrogans serovar Canicola is one of the most important pathogenic serovars for the maintenance of urban leptospirosis. Even though it is considered highly adapted to dogs, serovar Canicola infection has already been described in other animals and even a few human cases. Here, we present the genomic characterisation of two Brazilian L. interroga
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-02
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36. Estudo sorológico de anticorpos anti-Leptospira spp. em aoudads (Ammotragus lervia) no zoológico de Curitiba, sul do Brasil
RESUMO: A leptospirose é uma zoonose mundial que afeta seres humanos, animais domésticos e selvagens. O presente estudo objetivou avaliar a prevalência de anticorpos anti-Leptospira spp. em aoudads do zoológico de Curitiba. Foi realizado o teste de Soroaglutinação microscópica (SAM) utilizando 17 sorogrupos. Anticorpos contra Leptospira spp. foram obs
Pesq. Vet. Bras.. Publicado em: 2018-01