LEUCOSE ENZOOTICA BOVINA PDF

Estudo comparativo entre as provas de imunodifusao em placa e em lamina na deteccao de anticorpos contra o virus da leucose enzootica bovina []. Contagem linfocitaria e anticorpos contra o virus da leucose enzootica bovina em rebanhos do Rio de Janeiro []. Ferreira, M.I. Romero, C.H. Rowe, C.A. Ocorrência do vírus da leucose enzoótica dos bovinos (BLV) e de anticorpos contra herpesvírus bovino tipo-1 (BoHV-1) e vírus da diarreia viral bovina (BVDV) .

Author: Kiganris Arashizahn
Country: Luxembourg
Language: English (Spanish)
Genre: Technology
Published (Last): 6 July 2014
Pages: 383
PDF File Size: 12.4 Mb
ePub File Size: 5.10 Mb
ISBN: 877-7-47377-243-9
Downloads: 73751
Price: Free* [*Free Regsitration Required]
Uploader: Doramar

Reduced proviral loads during primo-infection of sheep by bovine leukemia virus attenuated mutants.

PCR, a recent molecular biological tool, remains labour intensive and expensive to perform which limit the use to large commercial or research oriented diagnostic laboratories Application in diagnosis of bovine leukaemia virus BLV infection in natutally infected cattle. No treatment is available for the disease.

Services on Demand Journal. Enzyme-linked inmunoabsorbent assay for the diagnosis of bovine leukosis comparison with the agar gel inmunodiffusion test approved by the Canadian Food Inspection Agency. In Europe attempts leudose made to eradicate the virus by culling infected animals.

High prevalence of virus was found from testing by USDA. Determination of the optimal cutoff value for a serological assay: On the other hand, Artigos sem imagem tanto localmente quanto no Wikidata! Natural infection of animals other than cattle and buffalo are rare, although many animals are susceptible to artificial infection.

  LEGEA ASOCIATIILOR DE PROPRIETARI ACTUALIZATA 2013 PDF

A quote from a USDA fact sheet, “The high individual animal prevalence of BLV reported in the Dairy study suggests that testing and culling seropositive animals may not be a cost effective method to control the disease.

Besides structural and enzymatic genes required for virion production, BLV contains an oncogene coding for bovinna protein called Tax and expresses microRNAs of unknown function. Possibilities and limitations for use of the polymerase chain reaction PCR in the diagnosis of bovine leukemia virus BLV infection in cattle.

Consultado em 17 de agosto de Bovine leukemia virus infection should also be considered in the differential diagnosis of nonspecific clinical manifestations.

The first country considered to be free of infection was Denmark.

Leucose enzoótica bovina

Souza I ; A. Veterinary BulletinVol. BLV infection is mainly transmitted horizontally, iatrogenic via, through exposure of the susceptible bovines to “B” lymphocytes virus carriers. This has also been pointed out in other continents and great efforts have been made in many countries for its control and eradication.

Principles of validation of diagnostic assays for infectious diseases. The Kappa coefficient 14,18 measures the agreement level when two tests classify the results in two or more excluding categories infected, non infected. The cut-off value of a diagnostic test is the scale point of measure from which the quantitative results are classified as positive or negative and it is the value from which the quantitative data are categorised.

  HERPETOFAUNA DA CAATINGA PDF

This correspondence is similar Instead, preventing disease transmission by implementing preventive practices would likely be more cost-effective. Applying a similar analysis to that showed before, the results obtained are: That value showed the best correspondence between our challenge test Leucokit-La Plata and the gold standard test ID.

The PCR is a technique especially appropiated for the diagnosis of virus infection where virus specific antibodies cannot be detected and the presence of viral genome is the only evidence of infection Comparison of agar gel immunodiffusion test, enzyme-linked immunosorbent assay and western blotting for the detection of BLV antibodies.

Leucose enzoótica bovina – Wikipédia, a enciclopédia livre

Recebido em 19 de abril de Aceito em 13 de abril de Only some animals later develop a B-cell leukemia called enzootic bovine leukosis. Services on Demand Journal.

Kieling II ; M. Youden’s J value 0. Like the North American states, those of the Eastern block in Europe did not try to get rid of the virus.

Determination of lymphocyte division by flow cytometry.