Rift Valley fever virus and European mosquitoes: vector competence of Culex pipiens and Stegomyia albopicta (= Aedes albopictus)

M. Brustolin, S. Talavera, A. NuÑez, C. SantamarÍa, R. Rivas, N. Pujol, M. Valle, M. VerdÚn, A. Brun, N. PagÈs, N. Busquets

    Research output: Contribution to journalArticleResearchpeer-review

    30 Citations (Scopus)

    Abstract

    © 2017 The Authors. Medical and Veterinary Entomology published by John Wiley & Sons Ltd on behalf of Royal Entomological Society. Rift Valley fever (RVF) is a mosquito-borne disease caused by the Rift Valley fever virus (RVFV). Rift Valley fever affects a large number of species, including human, and has severe impact on public health and the economy, especially in African countries. The present study examined the vector competence of three different European mosquito species, Culex pipiens (Linnaeus, 1758) form molestus (Diptera: Culicidae), Culex pipiens hybrid form and Stegomyia albopicta (= Aedes albopictus) (Skuse, 1894) (Diptera: Culicidae). Mosquitoes were artificially fed with blood containing RVFV. Infection, disseminated infection and transmission efficiency were evaluated. This is the first study to assess the transmission efficiency of European mosquito species using a virulent RVFV strain. The virus disseminated in Cx. pipiens hybrid form and in S. albopicta. Moreover, infectious viral particles were isolated from saliva of both species, showing their RVFV transmission capacity. The presence of competent Cx. pipiens and S. albopicta in Spain indicates that an autochthonous outbreak of RVF may occur if the virus is introduced. These findings provide information that will help health authorities to set up efficient entomological surveillance and RVFV vector control programmes.
    Original languageEnglish
    Pages (from-to)365-372
    JournalMedical and Veterinary Entomology
    Volume31
    Issue number4
    DOIs
    Publication statusPublished - 1 Dec 2017

    Keywords

    • Culex pipiens
    • FTA™ Cards
    • Rift Valley fever virus
    • Stegomyia albopicta (= Aedes albopictus)
    • saliva
    • transmission
    • vector competence

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