Hemagglutination Inhibition
Mostrando 25-36 de 578 artigos, teses e dissertações.
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25. Vigilância de epizootias em primatas não humanos (PNH) como instrumento de monitoramento de arboviroses e outras viroses de interesse em saúde pública
Epizootics in wild animals can be considered important public health indicators, besides little used in epidemiological surveillance. Evaluation of non human primates (NHP), like ?sentinels animals?, was realized through this study in Porto Rico County region, upper Paraná River, including Paraná and Mato Grosso do Sul States, Brazil, between June/04 and A
Publicado em: 2007
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26. Newcastle disease virus infection in sparrows (Passer domesticus, Linneaus, 1758) captured in poultry farms of the agreste region of the State of Pernambuco
Reservoir competence for the Newcastle Disease virus (NDV) was evaluated in sparrows (Passer domesticus, Linnaeus 1758) captured on a commercial poultry farm and a chicken hatchery in the State of Pernambuco, Northeastern Brazil. A total number of 103 birds collected from a poultry farm (24/103) and a chicken hatchery (79/103) were examined. Hemagglutination
Revista Brasileira de Ciência Avícola. Publicado em: 2006-06
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27. Serologic response of SPF chickens to live vaccines and other strains of Mycoplasma gallisepticum
False positive serologic reactions and difficulties in the diagnosis of Mycoplasma gallisepticum (MG) in chickens have increased lately as a result of infection by low virulent MG strains and the use of live MG vaccines in poultry. The objective of this study was to evaluate the serologic responses of SPF chickens exposed to the three commercially available
Revista Brasileira de Ciência Avícola. Publicado em: 2006-03
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28. Infecção por Toxoplasma gondii e Neospora caninum em cães e lobos-guará: soroepidemiologia e imunodiagnóstico / Infecção por Toxoplasma gondii e Neospora caninum em cães e lobos-guará: soroepidemiologia e imunodiagnóstico
Toxoplasma gondii and Neospora caninum are two closely related apicomplexan parasites, even though phylogenetic, ultrastructural, antigenic and biological differences have been already described. Seroepidemiological studies have demonstrated that T. gondii infection is often in domestic and sylvatic canids, whereas N. caninum infection is less common, but it
Publicado em: 2006
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29. Dengue: a review of the laboratory tests a clinician must know to achieve a correct diagnosis
Dengue is the most important disease caused by an arbovirus (1, 2, 3 and 4 serotypes) worldwide, especially in the tropical and sub-tropical regions. Its clinical manifestations range from asymptomatic infections to a severe disease characterized by hemorrhage and shock. The incidence of dengue virus activity in the Americas has substantially increased from
Brazilian Journal of Infectious Diseases. Publicado em: 2004-12
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30. Bovine coronavirus (BCoV): occurrence, molecular diversity and standardization of a PCR to diagnosis using stool samples of calves with and without diarrhea from municipalities of São Paulo and Minas Gerais States, Brazil / Coronavírus bovino (BCoV): ocorrência, diversidade molecular e padronização de PCR para diagnóstico a partir de amostras fecais de bezerros com e sem diarréia criados em municípios dos Estados de São Paulo e Minas Gerais, Brasil
Bovine coronavirus (BCoV) belongs to group 2 of the genus Coronavirus from the order Nidovirales, family Coronaviridae and causes diarrhea in newborn calves, respiratory diseases in non-newborn calves and dysentery in cows. In the present study, 203 stool samples of calves from 19 dairy farms from São Paulo and Minas Gerais States were submitted to hemagglu
Publicado em: 2004
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31. Screening for carbohydrate-binding proteins in extracts of Uruguayan plants
The presence of carbohydrate-binding proteins, namely lectins, ß-galactosidases and amylases, was determined in aqueous extracts of plants collected in Uruguay. Twenty-six extracts were prepared from 15 Uruguayan plants belonging to 12 Phanerogam families. Among them, 18 extracts caused hemagglutination (HAG) that was inhibited by mono- and disaccharides in
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-07
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32. Test profiles of broiler breeder flocks housed in farms with endemic Mycoplasma synoviae infection
There is a need for a better understanding of the epidemiology of Mycoplasma synoviae (MS) infection in broiler breeders in Brazil. Many features of the infection remain unrecognizable, because there are no clinical signs of the disease. A detailed testing was performed at each 6 to 8 weeks in three MS-free flocks introduced in farms with endemic MS infectio
Revista Brasileira de Ciência Avícola. Publicado em: 2003-04
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33. Screening of lectins from South American plants used as affinity ligands to purify rhEPO
Two groups of isoforms of rhEPO, at a concentration of 300 µg/ml, were tested as putative inhibitors of the lectinic hemagglutination reaction in order to obtain affinity ligand(s) for hormone purification: groups I (pI: 3.80; 3.89; 3.95; 4.07, 4.15 and 4.26) and groups II (pI: 4.15, 4.26; 4.38; 4.51; 4.72 and 4.93) Crude extracts from the vegetable materia
Brazilian Journal of Chemical Engineering. Publicado em: 2003-03
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34. Infecção experimental por Paramyxovirus em serpentes Boa constrictor (LINNAEUS, 1758). Estudo anátomo-patológico, imunoistoquímico, microbiológico, hematológico e sorológico / Experimental infection with Paramyxovirus in Boa constrictor (LINNAEUS, 1758) snakes . A pathological, imunohistochemical, microbiological, hematological and serological study
Despite multiple advances in the genetic and taxonomic understanding of ophidian paramyxovirus (OPMV), only pulmonary pathogenesis is reasonably known in viperids. The objective of the present study was to investigate the pathogenesis of paramyxovirus infection in Boidae by pathological, imunohistochemical, microbiological, hematological and serological stud
Publicado em: 2003
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35. Isolamento, caracterizaÃÃo parcial e atividades biolÃgicas da lectina de entrecasca de aroeira (Schinus terebinthifolius Raddi.)
Bark infusions of Schinus terebinthifolius Raddi., Anacardiaceae family (aroeira), have been commonly used in popular medicine. Lectins constitute a heterogeneous protein group capable of recognizing and reversibly bind to carbohydrates. The aim of this work was to isolate a bark lectin from S. terebinthifolius and to evaluate its biological properties. Extr
Publicado em: 2002
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36. Comparison of an enzyme-linked immunosorbent assay with indirect hemagglutination and hemagglutination inhibition for determination of rubella virus antibody: evaluation of immune status with commercial reagents in a clinical laboratory.
Comparative evaluations of immune status for rubella virus are described for enzyme-linked immunosorbent assay, hemagglutination inhibition, and indirect hemagglutination. A 92.1% agreement between enzyme-linked immunosorbent assay and indirect hemagglutination assay was demonstrated for rubella immune status. Enzyme-linked immunosorbent assay and hemaggluti