Does feeding on infected mosquitoes (Diptera: Culicidae) enhance the role of song sparrows in the transmission of arboviruses in California?

William Reisen, Ying Fang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Song sparrows, Melopiza melodia, inoculated subcutaneously with either western equine encephalomyelitis virus (family Togaviridae, genus Alphavirus, WEEV) or West Nile virus (family Flaviviridae, genus Flavivirus, WNV) developed elevated viremias, and they were considered to be competent experimental hosts for both viruses. However, birds that ingested from three to 20 mosquitoes containing comparable amounts of either WEEV or WNV failed to become infected, indicating limited oral susceptibility. Comparatively few field-collected birds had antibodies against either WEEV or WNV, indicating that this species was infrequently bitten by infectious mosquitoes in nature and probably was of limited importance in viral amplification.

Original languageEnglish (US)
Pages (from-to)316-319
Number of pages4
JournalJournal of Medical Entomology
Volume44
Issue number2
StatePublished - Mar 1 2007

Fingerprint

Sparrows
Arboviruses
arboviruses
Passeriformes
Music
Culicidae
Diptera
animal communication
Birds
Western Equine Encephalitis Viruses
Togaviridae
Western equine encephalitis virus
Flaviviridae
Alphavirus
Flavivirus
West Nile virus
birds
Viremia
viremia
mouth

Keywords

  • Mosquito
  • Oral infection
  • Song sparrow
  • West Nile virus
  • Western equine encephalomyelitis virus

ASJC Scopus subject areas

  • Insect Science
  • veterinary(all)

Cite this

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title = "Does feeding on infected mosquitoes (Diptera: Culicidae) enhance the role of song sparrows in the transmission of arboviruses in California?",
abstract = "Song sparrows, Melopiza melodia, inoculated subcutaneously with either western equine encephalomyelitis virus (family Togaviridae, genus Alphavirus, WEEV) or West Nile virus (family Flaviviridae, genus Flavivirus, WNV) developed elevated viremias, and they were considered to be competent experimental hosts for both viruses. However, birds that ingested from three to 20 mosquitoes containing comparable amounts of either WEEV or WNV failed to become infected, indicating limited oral susceptibility. Comparatively few field-collected birds had antibodies against either WEEV or WNV, indicating that this species was infrequently bitten by infectious mosquitoes in nature and probably was of limited importance in viral amplification.",
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AB - Song sparrows, Melopiza melodia, inoculated subcutaneously with either western equine encephalomyelitis virus (family Togaviridae, genus Alphavirus, WEEV) or West Nile virus (family Flaviviridae, genus Flavivirus, WNV) developed elevated viremias, and they were considered to be competent experimental hosts for both viruses. However, birds that ingested from three to 20 mosquitoes containing comparable amounts of either WEEV or WNV failed to become infected, indicating limited oral susceptibility. Comparatively few field-collected birds had antibodies against either WEEV or WNV, indicating that this species was infrequently bitten by infectious mosquitoes in nature and probably was of limited importance in viral amplification.

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