• Corpus ID: 26815958

The use of a membrane feeding technique to determine the infection rate of Culicoides imicola (Diptera, Ceratopogonidae) for 2 bluetongue virus serotypes in South Africa.

@article{Venter1991TheUO,
  title={The use of a membrane feeding technique to determine the infection rate of Culicoides imicola (Diptera, Ceratopogonidae) for 2 bluetongue virus serotypes in South Africa.},
  author={Gert Johannes Venter and Elaine Hill and I T Pajor and E. M. Nevill},
  journal={The Onderstepoort journal of veterinary research},
  year={1991},
  volume={58 1},
  pages={
          5-9
        }
}
Culicoides spp. in the Lowveld of the northern Transvaal, Republic of South Africa, were fed bluetongue virus serotypes 3 and 6 and African horsesickness virus serotype 1 through latex and chicken skin membranes. After an incubation period of 10 days at 25-27 degrees C, the infection rate of C. imicola for bluetongue virus serotypes 3 and 6 was established at 31% and 24% respectively. No African horsesickness virus could be recovered. The membrane feeding technique and handling procedures… 
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Culicoides spp. (Diptera: Ceratopogonidae) as vectors of bluetongue virus in South Africa - a review.
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Cumulative results since 1991 provide evidence that at least 13 livestock‑associated Culicoides species are susceptible to BTV, and multi‑vector potential for the transmission of BTV will complicate the epidemiology of BT.
A comparison of the susceptibility of Culicoides imicola and C. bolitinos to oral infection with eight serotypes of epizootic haemorrhagic disease virus
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Culicoides midges shown in this study to be susceptible to oral infection with EHDV are widely distributed in South Africa but differ considerably in their abundance, host preference and breeding sites.
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It was shown that wild‐caught Culicoides imicola Kieffer can become infected with and permit the replication of the Bryanston serotype of EEV following membrane‐feeding on infective blood containing 5.0 log10 plaque‐forming‐units (PFU)/ml.
The susceptibility of Culicoides imicola and other South African livestock‐associated Culicoides species to infection with bluetongue virus serotype 8
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Its low susceptibility to BTV indicates that other less abundant Culicoides species may have the potential to play decisive roles in the epidemiology of this virus and should not be excluded from risk assessment studies.
Vector competence of Culicoides bolitinos and C. imicola for South African bluetongue virus serotypes 1, 3 and 4
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The results suggested that C.’bolitinos populations are capable vectors of the BLU viruses in South Africa, and the C. v. sonorensis colonies had a significantly lower susceptibility to infection with BLU’1, 3 and 4 than C.
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This study confirms the susceptibility of C. scoticus and C. obsoletus to BTV-1 infection, including under cooler temperatures, and confirms that Culicoides grisescens, which is highly abundant at higher altitudes, cannot be considered a potential vector under these temperature conditions.
Vector Competence of Florida Culicoides insignis (Diptera: Ceratopogonidae) for Epizootic Hemorrhagic Disease Virus Serotype-2
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Results suggest that C. insignis is a weakly competent vector of EHDV-2 that can support a transmissible infection when it ingests a high virus titer, but not lower virus titers.
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