Culicoides sonorensis (Diptera: Ceratopogonidae) is not a competent vector of Cache Valley virus (family Bunyaviridae , genus Orthobunyavirus )

Culicoides sonorensis (Diptera: Ceratopogonidae) is not a competent vector of Cache Valley virus... We investigated the susceptibility of Culicoides sonorensis to Cache Valley virus (CVV) (family Bunyaviridae, genus Orthobunyavirus ) infection and the potential that it could be a vector or site of virus reassortment. CVV is native to the New World and causes disease in livestock. Infected blood meals were fed to both a competent vector, Anopheles quadrimaculatus, and Culicoides sonorensis. All Anopheles mosquitoes were infected as expected, but only 21 % of the C. sonorensis insects were susceptible to infection. These appeared to present a midgut barrier, because virus persisted but did not disseminate. This means Culicoides sonorensis is not likely to be a vector of CVV but could be involved in viral reassortment. Schmallenberg virus (SBV) (family Bunyaviridae , genus Orthobunyavirus ) was recently discovered in Europe and probably is a novel virus resulting from a reassortment of two orthobunyaviruses, and an ongoing epizootic in cattle and small ruminants has caused significant economic damage. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Culicoides sonorensis (Diptera: Ceratopogonidae) is not a competent vector of Cache Valley virus (family Bunyaviridae , genus Orthobunyavirus )

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Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-013-1715-6
Publisher site
See Article on Publisher Site

Abstract

We investigated the susceptibility of Culicoides sonorensis to Cache Valley virus (CVV) (family Bunyaviridae, genus Orthobunyavirus ) infection and the potential that it could be a vector or site of virus reassortment. CVV is native to the New World and causes disease in livestock. Infected blood meals were fed to both a competent vector, Anopheles quadrimaculatus, and Culicoides sonorensis. All Anopheles mosquitoes were infected as expected, but only 21 % of the C. sonorensis insects were susceptible to infection. These appeared to present a midgut barrier, because virus persisted but did not disseminate. This means Culicoides sonorensis is not likely to be a vector of CVV but could be involved in viral reassortment. Schmallenberg virus (SBV) (family Bunyaviridae , genus Orthobunyavirus ) was recently discovered in Europe and probably is a novel virus resulting from a reassortment of two orthobunyaviruses, and an ongoing epizootic in cattle and small ruminants has caused significant economic damage.

Journal

Archives of VirologySpringer Journals

Published: Oct 1, 2013

References

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