Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add filters








Year range
1.
Arq. Inst. Biol. (Online) ; 89: e00462020, 2022. tab, mapas
Article in English | LILACS, VETINDEX | ID: biblio-1383683

ABSTRACT

The present objective was to investigate the presence of anti-equine viral encephalomyelitis (EVE) antibodies and the possible risk factors for its dissemination in horses raised in the East and West Potiguar mesoregions of the state of Rio Grande do Norte, Brazil. Serological diagnosis for neutralizing antibodies against Eastern (EEEV), Western (WEEV) and Venezuelan (VEEV). Equine viral encephalomyelitis was performed using a seroneutralization technique on 811 blood samples from horses from ninety properties and sixteen municipalities between July 2018 and February 2019. Factors associated with EVE were evaluated using an investigative epidemiological questionnaire, and the data were statistically analyzed using the Epi Info 3.5.2 software with a confidence level of 95%. The seroprevalence of anti-EVE antibodies was 14.2% (115), with 10.36% (84) for EEEV, 6.9% (56) for WEEV, and null for EVE. When analyzing risk factors, it can be concluded that horses raised in properties that do not clean installations and/or rent out their pasture are more likely to have anti-EVE antibodies. These results show evidence that horses raised in the East and West Potiguar mesoregions were exposed to EEEV and WEEV, thus reinforcing the importance of vaccination and serological survey of nonvaccinated horses as a means of monitoring the disease.


Subject(s)
Animals , Encephalomyelitis, Equine/epidemiology , Horse Diseases/diagnosis , Horses/virology , Brazil , Seroepidemiologic Studies , Encephalitis, Viral/veterinary
2.
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
SELECTION OF CITATIONS
SEARCH DETAIL