18 documents found, page 1 of 2
Molecular characterization of Mycobacterium bovis infection in cattle and buffa...
CARNEIRO, P. A. M.; PASQUATTI, T. N.; TAKATANI, H.; ZUMÁRRAGA, M. J.; MARFIL, M. J.; BARNARD, C.; FITZGERALD, S. D.; ABRAMOVITCH, R. B.; ARAUJO, F. R.The aim of this study was to characterize Mycobacterium bovis from cattle and buffalo tissue samples, from two Brazilian states, and to analyse their genetic diversity by spoligotyping. Tissue samples from tuberculosis suspect animals, 57 in Amazonas State (12 cattle and 45 buffaloes) and six from Pará State (5 cattle and one buffalo) from slaughterhouses under State Veterinary Inspection, were isolated in cult...
ELISA using a recombinant chimera of ESAT-6/MPB70/MPB83 for Mycobacterium bovis...
SOUZA, I. I. F. de; RODRIGUES, R. de A.; JORGE, K. S. G.; SILVA, M. R.; LILENBAUM, W.; VIDAL, C. E. S.; ETGES, R. N.; KOSTOVIC, M.; ARAUJO, F. R.Bovine tuberculosis (bTB) control programs generally rely on intradermal tuberculin tests for the antemortem diagnosis of Mycobacterium bovis infection in cattle, but these tests detect only a portion of the infected animals. The aim of the present study was to evaluate the diagnostic coverage of a combination of the bTB antemortem techniques known as the comparative intradermal tuberculin test (CITT) and an EL...
Matrix Assisted Laser Desorption Ionization-Time-of-Flight mass spectrometry id...
BACANELLI, G.; OLARTE, L. C.; SILVA, M. R.; RODRIGUES, R. A.; CARNEIRO, P. A. M.; KANEENE, J. B.; PASQUATTI, T. N.; TAKATANI, H.; ZUMÁRRAGA, M. J.In this study, Matrix Assisted Laser Desorption Ionization-Time-of-Flight (MALDITOF) mass spectrometry was used to identify Mycobacterium bovis from cattle and buffalo tissue isolates from the North and South regions of Brazil, grown in solid medium and previously identified by Polymerase Chain Reaction (PCR) based on Region of Difference 4 (RD4), sequencing and spoligotyping. For this purpose, the protein extr...
Analysing nonsynonymous mutations between two Mycobacterium bovis strains with ...
BIGI, M.; VAZQUEZ, C. L.; CASTELÃO, A. B. C.; GARCÍA, E. A.; CATALDI, A. A.; JACKSON, M.; MAcNEIL, M.; SORIA, M.; ZUMÁRRAGA, M. J.; MATIAS, C.; GAGO, G.Mycobacterium bovis (M. bovis) is the causative agent of bovine tuberculosis, a chronic infectious disease that can affect cattle, other domesticated species, wild animals and humans. This disease produces important economic losses worldwide. Two M. bovis strains (04-303 and 534) have been isolated in Argentina. Whereas the 04-303 strain was isolated from a wild boar, the 534 strain was obtained from cattle. In...
Epidemiological Study of Mycobacterium bovis Infection in Buffalo and Cattle in...
CARNEIRO, P. A. M.; TAKATANI, H.; PASQUATTI, T. N.; SILVA, C. B. D. G.; NORBY, B.; WILKINS, M. J.; ZUMÁRRAGA, M. J.; ARAUJO, F. R.; KANEENE, J. B.Bovine Tuberculosis (BTB) is an endemic disease in about one hundred countries, affecting the economy causing a decrease in productivity, condemnation of meat, and damaging the credibility on international trade. Additionally, Mycobacterium bovis the major causative agent for BTB can also infect humans causing a variety of clinical presentations. The aim of this study was to determine BTB prevalence and the mai...
Risk factors for human Mycobacterium bovis infections in an urban area of Brazil.
SILVA, M. R.; ROCHA, A. da S.; ARAUJO, F. R.; FONSECA-JÚNIOR, A. A.; ALENCAR, A. P. de; SUFFYS, P. N.; COSTA, R. R. da; MOREIRA, M. A. S.BACKGROUND The World Health Organization (WHO) has classified human zoonotic tuberculosis (TB) due to Mycobacterium bovis as a neglected issue in the developing world. In a recent cross-sectional study in Brazil, three of 189 TB patients presented with a coinfection of M. bovis and M. tuberculosis and were selected as cases for this study. OBJECTIVE The aim was to evaluate risk factors (RF) for zoonotic TB in a...
Survey of Salmonella spp. in beef meat for export at slaughterhouses in Brazil.
BIER, D.; KICH, J. D.; DUARTE, S. C.; SILVA, M. R.; VALSONI, L. M.; RAMOS, C. A. N.; RODRIGUES, D. P.; ARAUJO, F. R.The aim of the present study was to investigate the presence of Salmonella spp. in samples collected from beef meat at three points of the slaughter line (after skinning, washing and cooling) at three slaughterhouses in Brazil that export meat. Detection was based on ISO 6579:2002 and confirmed by PCR and qPCR. The isolates were typified using slide agglutination tests and PFGE. The antibiotic sensitivity profi...
Serological, parasitological and molecular assessment of Babesia bovis and Babe...
COSTA, F. B.; MELO, S. A.; ARAUJO, F. R.; RAMOS, C. A. do N.; CARVALHO-NETA, A. V.; GUERRA, R. de M. S. N. de C.The aim of the present study was to determine the prevalence of Babesia bovis and Babesia bigemina in dairy cattle from São Luis Island in the state of Maranhão, Brazil. A total of 281 blood samples were collected. In total, 275 (97.9%) animals were B. bovis-reactive and B. bigemina-reactive in the Enzyme-Linked Immunosorbent Assay (ELISA). The microscopy examination detected 22 (7.8%) animals that were positiv...
Polymorphisms of 20 regulatory proteins between Mycobacterium tuberculosis and ...
BIGI, M. M.; BLANCO, F. C.; ARAUJO, F. R.; THACKER, T. C.; ZUMÁRRAGA, M. J.; CATALDI, A. A.; SORIA, M. A.; BIGI, F.Mycobacterium tuberculosis and Mycobacterium bovis are responsible for tuberculosis in humans and animals, respectively. Both species are closely related and belong to the Mycobacterium tuberculosis complex (MTC). M. tuberculosis is the most ancient species from which M. bovis and other members of the MTCevolved. The genome of M. bovis is over>99.95% identical to that of M. tuberculosis but with seven deletions...
Genetic profiles of Mycobacterium bovis from a cattle herd in southernmost Brazil.
SOUZA-FILHO, A. F. de; OSÓRIO, A. L. A. R.; JORGE, K. dos S. G.; ARAUJO, F. R.; VIDAL, C. E. S.; ARAÚJO, C. P.; ALBERTTI, L. A. G.; CAZOLA, D. de O.Mycobacterium bovis is the agent of bovine tuberculosis, a disease endemic to all Brazilian states. Molecular typing techniques help to stratify and refine data, providing information that facilitates epidemiological research. In this study, MIRU-VNTR, targeting 24 loci, was employed to identify and characterize the genetic groups of M. bovis isolates obtained from an outbreak of bovine tuberculosis. Eighteen a...