English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/114235
Título

Development of specific diagnostic test for small ruminant lentivirus genotype E

AutorReina, Ramsés ; Grego, Elena; Profiti, Margherita; Glaria, Idoia ; Robino, Patrizia; Quasso, Antonio; Amorena Zabalza, Beatriz ; Rosati, Sergio
Palabras claveSmall ruminant lentivirus
Genotype E
Recombinant antigen
Diagnosis
Fecha de publicación18-sep-2009
EditorElsevier
CitaciónVeterinary Microbiology 138(3-4): 251- 257 (2009)
ResumenSmall ruminant lentivirus (SRLV) belonging to the highly divergent genotype E has recently been identified in the Italian goat breed Roccaverano. In this report we have developed a specific serological test based on recombinant matrix/capsid antigen fusion protein. Performance has been evaluated and compared with a similar test based on genotype B antigen. Herds under study were selected according to the infectious status characterized by blood PCR and sequencing. Results clearly showed that B and E based recombinant ELISA only detected homologous infection and an apparent cross-reactivity was recorded in a herd in which co-infection was present. Three commercially available ELISAs showed different abilities in detecting genotype E infection, being the whole virus-based immunoassay the best choice. Genotype E-recombinant antigen was not detected in ELISA by three commercially available Mabs known to be cross-reactive among CAEV and MVV capsid antigens, further supporting the high divergence of the E genotype from others. Finally, a SRLV-free herd according to commercial ELISA testing, was analysed in the same area where genotype E was identified and few animals belonging to Roccaverano breed were found slightly reactive with the E antigens. Our results suggest that the prevalence of genotype E in other small ruminant populations may be conveniently estimated using a comparative assay based on a combination of genotype specific recombinant antigens and may highlight a wider space in which SRLVs evolve. © 2009 Elsevier B.V. All rights reserved.
Versión del editorhttp://dx.doi.org/10.1016/j.vetmic.2009.04.005
URIhttp://hdl.handle.net/10261/114235
DOI10.1016/j.vetmic.2009.04.005
ISSN0378-1135
Aparece en las colecciones: (IDAB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.