Establishment and maintenance of persistent infection by picobirnavirus in greater rhea ( Rhea Americana)

Establishment and maintenance of persistent infection by picobirnavirus in greater rhea ( Rhea... A study aimed to determine the infection model that picobirnavirus (PBV) established in birds was conducted in a farm of greater rheas in Córdoba, Argentina. Analysis of stools collected during a longitudinal study involving seven birds provided evidence that PBV is acquired very early in life and establishes a persistent infection in the host, which is characterized by intermingled periods of high, low and silent viral activity. Genomic analysis indicated that the rheas excreted virus with nucleotide sequence identity between 90.5–100 % and that more than one PBV strain with different electropherotype profiles could be involve in the infection. This report provides the first evidence of persistent infection of PBV in birds. The natural history of PBV infection has begun to be understood, and it appears that asymptomatic PBV-infected mammals and birds could persistently excrete the virus in stool samples, contributing to wide circulation of the virus in the environment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Establishment and maintenance of persistent infection by picobirnavirus in greater rhea ( Rhea Americana)

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Publisher
Springer Journals
Copyright
Copyright © 2012 by Springer-Verlag Wien
Subject
Biomedicine; Medical Microbiology; Infectious Diseases; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-012-1400-1
Publisher site
See Article on Publisher Site

Abstract

A study aimed to determine the infection model that picobirnavirus (PBV) established in birds was conducted in a farm of greater rheas in Córdoba, Argentina. Analysis of stools collected during a longitudinal study involving seven birds provided evidence that PBV is acquired very early in life and establishes a persistent infection in the host, which is characterized by intermingled periods of high, low and silent viral activity. Genomic analysis indicated that the rheas excreted virus with nucleotide sequence identity between 90.5–100 % and that more than one PBV strain with different electropherotype profiles could be involve in the infection. This report provides the first evidence of persistent infection of PBV in birds. The natural history of PBV infection has begun to be understood, and it appears that asymptomatic PBV-infected mammals and birds could persistently excrete the virus in stool samples, contributing to wide circulation of the virus in the environment.

Journal

Archives of VirologySpringer Journals

Published: Nov 1, 2012

References

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