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Abstract

This is an epidemiological study of leptospirosis in 24 month-old females from 246 herds. Two thousand, seven hundred and sixty six (2,766) animals were randomly sampled in the nine counties comprising the region of Pantanal of Mato Grosso do Sul, Brazil. The risk factors associated with the...

Author(s)
Miashiro, A. F.; Vasconcellos, S. A.; Morais, Z. M. de; Souza, G. O. de; Leal Filho, J. M.; Figueiredo, A. de O.; Pellegrin, A. O.
Publisher
Colégio Brasileiro de Patologia Animal, Rio de Janeiro, Brazil
Citation
Pesquisa Veterinária Brasileira, 2018, 38, 1, pp 41-47
Abstract

In 2001, 698 urine samples were randomly collected from cattle at a slaughterhouse in the State of Paraná, Brazil. Direct examination using dark field microscopy was carried out immediately after collection. Five putative positive samples were cultured in modified EMJH medium, yielding two positive ...

Author(s)
Zacarias, F. G. da S.; Vasconcellos, S. A.; Anzai, E. K.; Giraldi, N.; Freitas, J. C. de; Hartskeerl, R.
Publisher
Sociedade Brasileira de Microbiologia, São Paulo, Brazil
Citation
Brazilian Journal of Microbiology, 2008, 39, 4, pp 744-748
Abstract

Thirteen goat herds and seven sheep flocks in the state of Rio de Janeiro, Brazil were screened for leptospirosis. From the three herds and three flocks with greatest seroreactivity, 19 goats (16 females and three bucks) and 40 sheep (26 ewes and 14 rams) that were seropositive (specific anti-...

Author(s)
Lilenbaum, W.; Varges, R.; Brandão, F. Z.; Cortez, A.; Souza, S. O. de; Brandão, P. E.; Richtzenhain, L. J.; Vasconcellos, S. A.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2008, 69, 7, pp 837-842
Abstract

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%...

Author(s)
Lilenbaum, W.; Morais, Z. M.; Gonçales, A. P.; Souza, G. O. de; Richtzenhain, L.; Vasconcellos, S. A.
Publisher
Sociedade Brasileira de Microbiologia, São Paulo, Brazil
Citation
Brazilian Journal of Microbiology, 2007, 38, 3, pp 507-510
Abstract

The aim of this study was to investigate the adequacy of the use of autochthonous strains of leptospires isolated in Brazil, added to antigen collection of the microscopic agglutination test (MAT) applied to the diagnosis of bovine leptospirosis. By means of non-probability sampling, 109 farms and...

Author(s)
Sarmento, A. M. C.; Azevedo, S. S.; Morais, Z. M.; Souza, G. O.; Oliveira, F. C. S.; Gonçales, A. P.; Miraglia, F.; Vasconcellos, S. A.
Publisher
Colégio Brasileiro de Patologia Animal, Rio de Janeiro, Brazil
Citation
Pesquisa Veterinária Brasileira, 2012, 32, 7, pp 601-606
Abstract

The objective of the study was to determine the seroprevalence of bovine leptopirosis in seven cattle production regions in São Paulo, Brazil [date not given]. Stratification of the regions was based on statistical delineation, serological samples and responses to a survey employed by the National...

Author(s)
Castro, V.; Azevedo, S. S.; Gotti, T. B.; Batista, C. S. A.; Gentili, J.; Moraes, Z. M.; Souza, G. O.; Vasconcellos, S. A.; Genovez, M. E.
Publisher
Instituto Biológico, São Paulo, Brazil
Citation
Arquivos do Instituto Biológico (São Paulo), 2008, 75, 1, pp 003-011
Abstract

A serological survey was conducted involving dairy cattle from different regions of Pernambuco State, Brazil to estimate the prevalence of brucellosis and leptospirosis. A total of 600 samples were tested using Serum Agglutination Test (SAT) and 2-Mercaptoethanol (2-ME), and Microscopic...

Author(s)
Tenório, T. G. da S.; Melo, L. E. H. de; Vasconcellos, S. A.; Castro, R. S. de; Silva, F. F. da; Leite, J. E. B.; Rêgo, E. W.; Vaz, B. B. d'U.; Borba, M. A. da C.; Melo, M. T. de; Castro, V. B. de; Campos, K. M. T.; Berto, R. S.; Mendes, E. I.
Publisher
Universidade Federal de Uberlândia, Uberlândia, Brazil
Citation
Veterinária Notícias, 2005, 11, 2, pp 43-48
Abstract

The prevalence of anti-Leptospira spp. antibodies was investigated in 2109 female cattle from 86 herds of Monte Negro municipality, Rondônia, Brazil (2001). Serum samples were evaluated by microscopic agglutination test against 24 leptospira serovars. Titers of 100 for at least one of 24 leptospira ...

Author(s)
Aguiar, D. M.; Gennari, S. M.; Cavalcante, G. T.; Labruna, M. B.; Vasconcellos, S. A.; Rodrigues, A. A. R.; Moraes, Z. M.; Camargo, L. M. A.
Publisher
Colégio Brasileiro de Patologia Animal, Rio de Janeiro, Brazil
Citation
Pesquisa Veterinária Brasileira, 2006, 26, 2, pp 102-104
Abstract

Risk factors associated with leptospirosis were identified in cows in the state of Bahia, northeastern Brazil. A total of 10,823 cows with >24 months of age from 1,414 herds were randomly sampled. For the serological diagnosis of Leptospira spp. infection, the microscopic agglutination test...

Author(s)
Oliveira, F. C. S.; Azevedo, S. S.; Pinheiro, S. R.; Batista, C. S. A.; Moraes, Z. M.; Souza, G. O.; Gonçales, A. P.; Vasconcellos, S. A.
Publisher
Colégio Brasileiro de Patologia Animal, Rio de Janeiro, Brazil
Citation
Pesquisa Veterinária Brasileira, 2010, 30, 5, pp 398-402
Abstract

The seroprevalence study for leptospirosis in bovines and humans was realized in family holder farms along the Transamazon Highway. The prevalence of bovine leptospirosis was 97% [90.9-99.5%] of farms with at least one positive animal according to microscopic agglutination test for the...

Author(s)
Homem, V. S. F.; Heinemann, M. B.; Moraes, Z. M.; Vasconcellos, S. A.; Ferreira, F.; Ferreira Neto, J. S.
Publisher
Sociedade Brasileira de Medicina Tropical, Uberaba, Brazil
Citation
Revista da Sociedade Brasileira de Medicina Tropical, 2001, 34, 2, pp 173-180

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