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1.
Rev. bras. ciênc. vet ; 28(2): 97-101, abr./jun. 2021. il.
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1367729

ABSTRACT

Objetivou-se investigar a presença do Vírus da Estomatite Vesicular (VEV) e seus fatores de risco para ocorrência e disseminação da enfermidade em equídeos das mesorregiões Leste e Oeste Potiguar do estado do Rio Grande do Norte, Brasil. Foram analisadas pela técnica de virusneutralização, 809 amostras sanguíneas de equídeos provenientes de noventa propriedades de dezesseis municípios Potiguares durante os meses de julho de 2018 a fevereiro de 2019. Os fatores de riscos associados ao VEV foram avaliados por meio de questionário epidemiológico e os dados submetidos a análise estatística no programa IBM SPSS Statistics versão 21.0 com nível de confiança de 95%. Posteriormente, todas as variáveis estatisticamente significantes foram submetidas a análise de regressão de Poisson. A soroprevalência de anticorpos anti-VEV foi 24,6% (199/809), sendo 3,2% (13/402) de soropositivos na mesorregião Leste e 45,7% (186/407) na do Oeste Potiguar. Com relação aos sorotipos, observou-se uma prevalência de 3,8% (31/809) e 24,5% (198/809) para Indiana 2 e 3 respectivamente, com 15,1% (30/198) de coinfecção. Equídeos criados na mesorregião Oeste, em propriedades que não realizam quarentena e onde os animais enfermos são mantidos no rebanho, foram consideradas fatores predisponentes a infecção pelo VEV. Esses resultados demonstram a circulação do VEV em equídeos no Rio Grande do Norte, com destaque ao Oeste Potiguar, e sendo necessário a aplicação de medidas sanitárias que impeçam introdução e disseminação do vírus ente as espécies susceptíveis, principalmente em condições climáticas favoráveis para a sua manutenção, no ambiente de criação e pastagens.


This study aimed to investigate the presence of Vesicular stomatitis virus (VSV) and risk factors for its occurrence and dissemination in equines from the Eastern and Western mesoregions of the state of Rio Grande do Norte, Brazil. Blood samples were analyzed, by Serum Virus Neutralization Assay, from 809 animals belonging to 90 properties distributed in sixteen municipalities from July 2018 to February 2019. Risk factors were assessed using an epidemiological questionnaire. Data were submitted to statistical analysis using the software IBM SPSS Statistics, version 21.0 with a 95% confidence level. Also, all statistically significant variables were subjected to Poisson regression analysis. The occurrence of anti-VSV antibodies was 24.6% (199/809) with 3.2% (13/402) and 45.7% (186/407) of seropositivity in the Western and Eastern mesoregion, respectively. Regarding serotypes, there were an occurrence of 3.8% (31/809) and 24.5% (198/809) for Indiana 2 and 3, respectively, and 15.1% (30/198) of co-infection for both. Equines kept of the Western mesoregion, on properties that do not quarantine, and where sick animals are kept in the herd, were considered risk factors for LVV infection. These results demonstrate the presence of VSV in equines in Rio Grande do Norte, with emphasis on Oeste Potiguar, and that sanitary measures must be adopted to prevent the introduction and viral spreading among susceptible species, especially due to favorable climatic conditions for the maintenance of VSV in the breeding and pasture environment.


Subject(s)
Animals , Vesicular stomatitis Indiana virus , Horse Diseases/virology , Risk Factors , Vesicular Stomatitis/virology , Antibodies, Viral/analysis
2.
Arq. Inst. Biol ; 88: e00802019, 2021. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1349009

ABSTRACT

The present research evaluated the seroprevalence of anti-zika virus (anti-ZIKV) antibodies by virus neutralization test (VNT) in 529 bovines from Andradina city, São Paulo state, Brazil. The reading was performed in an inverted optical microscope, considering reagents when the antibodies were capable to neutralize the ZIKV. Of the 529 samples, 53 (10.01%) were reagents. The animals were healthy at the time of collection. The samples were collected in February 2018, a favorable period for the multiplication of the vector and the highest risk of disease transmission. None of the animals showed anti-bovine viral diarrhea virus (anti-BVDV) antibodies, ruling out a possible cross-reaction, reinforcing the possible contact of the bovine with the ZIKV. In the herd, 88 pregnant females were evaluated; of these, 12 cows were reactive, with no history of reproductive problems or fetal malformations. This is the first research on the seroprevalence of ZIKV in cattle in Brazil, and studies should continue to evaluate cattle as a possible host of this arbovirus and its possible consequences for unique health and agribusiness.


Subject(s)
Animals , Cattle , Cattle , Seroepidemiologic Studies , Zika Virus , Antibodies , Viruses , Neutralization Tests , Flavivirus , Indicators and Reagents
3.
Arq. Inst. Biol ; 86: e0582018, 2019.
Article in English | LILACS, SES-SP, VETINDEX, SESSP-IPPROD, SES-SP | ID: biblio-1009484

ABSTRACT

Among the diseases that affect equines, bacterial diseases play an important role from a health and economic point of view, especially leptospirosis and brucellosis. The study aimed to provide information on the occurrence of anti-Leptospira spp. and anti-Brucella abortus antibodies in donkeys of São Paulo state. We found a frequency of 62.4% (53/85) antibodies against Leptospira spp. The donkeys were not seropositive for Brucella spp.(AU)


Entre as doenças que acometem os equídeos, as enfermidades bacterianas assumem um papel importante do ponto de vista sanitário e econômico, destacando-se a leptospirose e a brucelose. O estudo teve como objetivo fornecer informações sobre a ocorrência de anticorpos anti-Leptospira spp. e anti-Brucella abortus em jumentos no estado de São Paulo. Estimou-se que 62,4% (53/85) dos animais apresentavam anticorpos anti-Leptospira spp. Os jumentos estudados não foram sororreagentes contra a Brucella spp.(AU)


Subject(s)
Animals , Bacterial Infections , Brucellosis , Equidae , Leptospirosis , Brucella , Serologic Tests/methods , Leptospira/pathogenicity
4.
Article in English | LILACS, VETINDEX | ID: biblio-875121

ABSTRACT

Among the diseases that affect equines, viral diseases play an important role from a health and economic point of view, especially influenza, viral arteritis, herpes infections and vesicular stomatitis. In the Brazilian literature, there is little or no account of the occurrence of infectious diseases in donkeys. Given the importance of donkeys in different activities and the lack of information on infections that may occur in these animals, the aim of this study was to determine the frequency of anti-equine herpesvirus (EHV), anti-equine arteritis virus (EAV), anti-vesicular stomatitis, and anti-equine influenza (H3N8) antibodies in the serum of 85 donkeys bred in some regions of the state of São Paulo. We found the following antibody frequencies: 50.6% (43/85) antibodies against influenza virus subtype H3N8, 47% (40/85) anti-EHV, and 20% (17/85) anti-EAV. The donkeys were not seropositive for vesicular stomatitis. The results suggested that the agents EHV, EAV, and equine influenza subtype H3N8 circulate among donkeys in some regions of the state of São Paulo, Brazil, reinforcing the importance of establishing a routine diagnosis and epidemiological study of this species.(AU)


Dentre as doenças que acometem os equídeos, as enfermidades virais assumem um papel importante do ponto de vista sanitário e econômico, especialmente a influenza, arterite viral, as infecções herpéticas e a estomatite vesicular. Na literatura nacional, existe pouco ou nenhum relato sobre a ocorrência de enfermidades infecciosas nos asininos. Tendo em vista a importância dos asininos para diferentes atividades e a falta de informações sobre as doenças que acometem esses animais, este trabalho teve como objetivo estudar a frequência de anticorpos anti-EHV, antivírus da arterite equina, anti-estomatite vesicular e anti-influenza equina (H3N8) em 85 soros de jumentos criados no estado de São Paulo. Estimou-se que 50,6% apresentavam anticorpos contra o subtipo H3N8 do vírus da influenza; 47% (40/85) apresentavam anticorpos contra o EHV e 20% apresentavam anticorpos contra o vírus da arterite. Os jumentos não foram soro reagentes contra a estomatite vesicular. Os resultados obtidos sugerem que os agentes EHV, vírus da arterite equina e influenza equina subtipo H3N8, circulam entre os jumentos do estado de São Paulo, caracterizando a importância do estabelecimento de uma rotina diagnóstica e estudos epidemiológicos na espécie.(AU)


Subject(s)
Animals , Equartevirus/immunology , Communicable Diseases/epidemiology , Equidae/virology , Herpesvirus 1, Equid/immunology , Influenza A Virus, H3N8 Subtype/immunology , Vesicular Stomatitis/immunology , Serologic Tests/veterinary
5.
Rev. bras. parasitol. vet ; 23(2): 255-259, 06/2014. tab
Article in English | LILACS | ID: lil-714798

ABSTRACT

Barbary sheep (Ammotragus lervia) have the potential to act as hosts of important infectious diseases, particularly zoonoses. Blood samples from 17 Barbary sheep at the Curitiba zoo were collected to evaluate occurrences of anti-Toxoplasma gondii and anti-Neospora caninum antibodies, tested using the indirect immunofluorescence antibody test (IFAT). Anti-T. gondii and anti-N. caninum antibodies were detected in 4/17 (23.5%) and 4/17 (23.5%) samples, respectively. The present study has shown that Barbary sheep at Curitiba zoo were exposed to T. gondii and N. caninum and therefore may act as intermediate hosts, spreading toxoplasmosis and neosporosis within and between species in shared areas.


Aoudads (Ammotragus lervia) têm o potencial para atuar como hospedeiros de importantes doenças infecciosas, em particular as zoonoses. Amostras de sangue de 17 aoudads do zoológico de Curitiba foram coletadas para avaliar ocorrências de anticorpos anti-Toxoplasma gondii e anti-Neospora caninum, testados pela reação de imunofluorescência indireta (RIFI). Anticorpos anti-T. gondii e anti-N. caninum foram detectados em 4/17 (23,5%) e 4/17 (23,5%) das amostras dos aoudads, respectivamente. O presente estudo revelou que os aoudads no zoológico de Curitiba estão expostos a T. gondii e N. caninum e, portanto, podem atuar como hospedeiros intermediários e fatores de difusão da toxoplasmose e da neosporose intra e interespécies em áreas compartilhadas.


Subject(s)
Animals , Female , Male , Antibodies, Protozoan/blood , Neospora/immunology , Sheep/blood , Toxoplasma/immunology , Brazil
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