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Erschienen in: Archives of Virology 2/2011

01.02.2011 | Original Article

Molecular characterization of avian astroviruses

verfasst von: M. J. Pantin-Jackwood, K. O. Strother, E. Mundt, L. Zsak, J. M. Day, E. Spackman

Erschienen in: Archives of Virology | Ausgabe 2/2011

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Abstract

Astroviruses are frequently associated with enteric diseases in poultry, being isolated from cases of runting-stunting syndrome (RSS) of broiler chickens, poult enteritis complex (PEC), and poult enteritis mortality syndrome (PEMS) of turkeys. Currently, five types of avian astrovirus have been identified: turkey astroviruses 1 and 2 (TAstV-1, TAstV-2), avian nephritis virus (ANV), chicken astrovirus (CAstV) and duck astrovirus (DAstV). The objective of this study was to molecularly characterize the different types of avian astroviruses circulating in commercial poultry. Sequence analysis of a region of ORF2, which encodes the capsid precursor protein associated with serotype and viral pathogenesis, revealed extensive variation in amino acid sequence within each subtype: TAstV-2 (81.5%-100%), ANV (69.9%-100%), and CAstV (85.3%-97.9%). However, this region was more conserved in TAstV-1’s (96.2%-100%). Furthermore, a novel astrovirus was detected in chicken samples and found to be <64% similar to ANV and <30.6% similar to CAstV. The results of this study underline the great genetic variability of avian astroviruses and indicate that there are most likely multiple serotypes of each avian astrovirus circulating in commercial poultry.
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Metadaten
Titel
Molecular characterization of avian astroviruses
verfasst von
M. J. Pantin-Jackwood
K. O. Strother
E. Mundt
L. Zsak
J. M. Day
E. Spackman
Publikationsdatum
01.02.2011
Verlag
Springer Vienna
Erschienen in
Archives of Virology / Ausgabe 2/2011
Print ISSN: 0304-8608
Elektronische ISSN: 1432-8798
DOI
https://doi.org/10.1007/s00705-010-0849-z

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10.05.2024 Koronare Herzerkrankung Nachrichten

Nach PCI besteht ein erhöhtes Blutungsrisiko, wenn die Behandelten eine verminderte linksventrikuläre Ejektionsfraktion aufweisen. Das Risiko ist umso höher, je stärker die Pumpfunktion eingeschränkt ist.

Update Innere Medizin

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