Clinico-pathological aspects in the natural infection of Bovine Respiratory Syncytial Virus (BRSV) in extensive management of cattle in Rio Grande do Sul, Brazil

dc.creatorDriemeier, D
dc.creatorGomes, MJP
dc.creatorMoojen, V
dc.creatorArns, CW
dc.creatorVogg, G
dc.creatorKessler, L
dc.creatordaCosta, UM
dc.date1997
dc.dateAPR-JUN
dc.date2014-12-16T11:36:16Z
dc.date2015-11-26T16:21:14Z
dc.date2014-12-16T11:36:16Z
dc.date2015-11-26T16:21:14Z
dc.date.accessioned2018-03-28T23:03:18Z
dc.date.available2018-03-28T23:03:18Z
dc.identifierPesquisa Veterinaria Brasileira. Revista Pesquisa Veterinaria Brasileira, v. 17, n. 2, n. 77, n. 81, 1997.
dc.identifier0100-736X
dc.identifierWOS:A1997XN99400006
dc.identifier10.1590/S0100-736X1997000200006
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56089
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/56089
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56089
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1267922
dc.descriptionThe clinical aspects as well as the pathology, microbiology and serology of a natural Bovine Respiratory Syncytial (BRSV) infection of bovine in a herd of 600 beef cattle kept under extensive management in the State of Rio Grande do Sul, Brazil, are described. Clinically two animals had chronic cough and severe dyspnea when forced to mild physical exercise. These two animals were euthanatized and post-morten examination was performed. The macroscopic changes were of pulmonary origin, such as disseminated alveolar emphysema, focal atelectasis and marked interlobular septal thickening. The fluorescent antibody test on lung cryostat sections was positive to BRSV for both animals, and it was negative to PI-3 virus, BVDV and BHV. The BRSV was isolated from the lung of one of the animals on MDBK, and was also identified by fluorescent antibody test. No association with Chlamydia psittaci was found by ELISA performed on lung tissues. The histopathology showed syncytial cells, chronic emphysema, peribronchiolar muscle layer hypertrophy and squamous metaplasia of bronchial and bronchiolar epithelia. The serology to detect antibodies to BRSV resulted in 79% of positives from the first specimen collection. In this group of young animals some of them had a cough. The second samples collected 6 months later were from animals of different age groups resulting in 17.3% of positives. This is the first report on clinical BRSV infection in Brazil.
dc.description17
dc.description2
dc.description77
dc.description81
dc.languagept
dc.publisherRevista Pesquisa Veterinaria Brasileira
dc.publisherRio Janeiro
dc.publisherBrasil
dc.relationPesquisa Veterinaria Brasileira
dc.relationPesqui. Vet. Bras.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectBRSV
dc.subjectbovine
dc.subjectextensive management
dc.subjectvirology
dc.subjectserology
dc.subjectpathology
dc.subjectRespiratory Complex
dc.subjectCalves
dc.subjectPathogenesis
dc.subjectPneumonia
dc.titleClinico-pathological aspects in the natural infection of Bovine Respiratory Syncytial Virus (BRSV) in extensive management of cattle in Rio Grande do Sul, Brazil
dc.typeArtículos de revistas


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