Isolation and molecular characterization of Brazilian turkey reovirus from immunosuppressed young poults

In this study, we investigated turkey reovirus (TReoV) in tissue samples from young birds, aged 15 days. RT-PCR for TReoV detected 3.3 % positive samples and TReoV was successfully isolated in Vero cells. Histological analysis of positive bursa of Fabricius (BF) revealed atrophied follicles and lymp...

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Detalles Bibliográficos
Autores principales: Rosa, Ana Carolina G., Ferreira, Helena Lage, Gomes, Deriane Elias, Táparo, Cilene Vidovix, Cardoso, Tereza Cristina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Vienna 2013
Materias:
Brief Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7086608/
https://www.ncbi.nlm.nih.gov/pubmed/24327096
http://dx.doi.org/10.1007/s00705-013-1947-5
Descripción
Sumario:In this study, we investigated turkey reovirus (TReoV) in tissue samples from young birds, aged 15 days. RT-PCR for TReoV detected 3.3 % positive samples and TReoV was successfully isolated in Vero cells. Histological analysis of positive bursa of Fabricius (BF) revealed atrophied follicles and lymphocyte depletion. The number of CD8+, CD4+ and IgM+ cells was lower in infected BF. Phylogenetic analysis based on S3 gene showed that the Brazilian TReoV isolates clustered in a single group with 98-100 % similarity to TReoV strains circulating in the United States. This is the first indication that TReoV infection may be a contributing factor to immunosuppression in young birds.

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