No evidence of endemic Borna disease virus infection in Australian horses in contrast with endemic infection in other continents

No evidence of endemic Borna disease virus infection in Australian horses in contrast with... Borna disease virus (BDV) is a unique RNA virus that is a cause of neurological disease in horses, sheep and cats. The finding that BDV also infects humans has raised concern related to the impact of infection with this virus. The extent to which BDV may be endemic in geographical regions outside Europe is of interest in management of international movement of animals including horses. Sera from Australian horses (N = 553) sampled in Sydney, New South Wales (NSW), were analysed for BDV antigen, circulating immune complexes (CICs), and antibodies by monoclonal antibody-based ELISAs. One-tenth of the samples were investigated by further antibody tests, namely immunofluorescence (IFA) and a peptide ELISA, as well as for BDV RNA. The study revealed a very low frequency of serological markers that may be associated with exposure to BDV in Australian horses from NSW with a few sera (0.7%) displaying low range positive results in the CIC assay, and no detectable BDV RNA. This pattern is inconsistent with endemic BDV infection and strongly contrasts with the pattern of endemic infection, particularly in Europe. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

No evidence of endemic Borna disease virus infection in Australian horses in contrast with endemic infection in other continents

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Publisher
Springer-Verlag
Copyright
Copyright © 2006 by Springer-Verlag/Wien
Subject
Biomedicine; Medical Microbiology; Infectious Diseases; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-005-0655-1
Publisher site
See Article on Publisher Site

Abstract

Borna disease virus (BDV) is a unique RNA virus that is a cause of neurological disease in horses, sheep and cats. The finding that BDV also infects humans has raised concern related to the impact of infection with this virus. The extent to which BDV may be endemic in geographical regions outside Europe is of interest in management of international movement of animals including horses. Sera from Australian horses (N = 553) sampled in Sydney, New South Wales (NSW), were analysed for BDV antigen, circulating immune complexes (CICs), and antibodies by monoclonal antibody-based ELISAs. One-tenth of the samples were investigated by further antibody tests, namely immunofluorescence (IFA) and a peptide ELISA, as well as for BDV RNA. The study revealed a very low frequency of serological markers that may be associated with exposure to BDV in Australian horses from NSW with a few sera (0.7%) displaying low range positive results in the CIC assay, and no detectable BDV RNA. This pattern is inconsistent with endemic BDV infection and strongly contrasts with the pattern of endemic infection, particularly in Europe.

Journal

Archives of VirologySpringer Journals

Published: Apr 1, 2006

References

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