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Natural infection of vertebrate hosts by different lineages of Buggy Creek virus (family Togaviridae , genus Alphavirus )

Natural infection of vertebrate hosts by different lineages of Buggy Creek virus (family... Buggy Creek virus (BCRV; family Togaviridae , genus Alphavirus ) is an arbovirus transmitted by the ectoparasitic swallow bug (Hemiptera: Cimicidae: Oeciacus vicarius ) to cliff swallows ( Petrochelidon pyrrhonota ) and house sparrows ( Passer domesticus ). BCRV occurs in two lineages (A and B) that are sympatric in bird nesting colonies in the central Great Plains, USA. Previous work on lineages isolated exclusively from swallow bugs suggested that lineage A relies on amplification by avian hosts, in contrast to lineage B, which is maintained mostly among bugs. We report the first data on the BCRV lineages isolated from vertebrate hosts under natural conditions. Lineage A was overrepresented among isolates from nestling house sparrows, relative to the proportions of the two lineages found in unfed bug vectors at the same site at the start of the summer transmission season. Haplotype diversity of each lineage was higher in bugs than in sparrows, indicating reduced genetic diversity of virus amplified in the vertebrate host. BCRV appears to have diverged into two lineages based on different modes of transmission. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Natural infection of vertebrate hosts by different lineages of Buggy Creek virus (family Togaviridae , genus Alphavirus )

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References (34)

Publisher
Springer Journals
Copyright
Copyright © 2010 by Springer-Verlag
Subject
Biomedicine; Infectious Diseases; Medical Microbiology ; Virology
ISSN
0304-8608
eISSN
1432-8798
DOI
10.1007/s00705-010-0638-8
pmid
20229115
Publisher site
See Article on Publisher Site

Abstract

Buggy Creek virus (BCRV; family Togaviridae , genus Alphavirus ) is an arbovirus transmitted by the ectoparasitic swallow bug (Hemiptera: Cimicidae: Oeciacus vicarius ) to cliff swallows ( Petrochelidon pyrrhonota ) and house sparrows ( Passer domesticus ). BCRV occurs in two lineages (A and B) that are sympatric in bird nesting colonies in the central Great Plains, USA. Previous work on lineages isolated exclusively from swallow bugs suggested that lineage A relies on amplification by avian hosts, in contrast to lineage B, which is maintained mostly among bugs. We report the first data on the BCRV lineages isolated from vertebrate hosts under natural conditions. Lineage A was overrepresented among isolates from nestling house sparrows, relative to the proportions of the two lineages found in unfed bug vectors at the same site at the start of the summer transmission season. Haplotype diversity of each lineage was higher in bugs than in sparrows, indicating reduced genetic diversity of virus amplified in the vertebrate host. BCRV appears to have diverged into two lineages based on different modes of transmission.

Journal

Archives of VirologySpringer Journals

Published: May 1, 2010

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