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Les Culicoides, diptères hématophages vecteurs de la fièvre catarrhale du mouton

Abstract : Bluetongue is an exotic viral disease qualified as “re-emerging” in Europe, and whose vectors are small hematophagous diptera of Ceratopogonidae family (Culicoides genus). The best-known Culicoides species is Culicoides imicola, which is the main vector incriminated in Europe. The development of this insect includes several larval stages, before moulting into the nymph stage, and finally within a few days into a mature adult, which is able to reproduce. The Bluetongue virus replicates in the adult insect, and its concentration in the insect’s saliva can be multiplied a thousand fold. These insects do not harbour just only carry only Bluetongue virus. Over fifty other viruses have been isolated from Culicoides caught in traps. These insects represent a major health hazard, which must be monitored, since they are found with all types of climates: from Finland to the tropics, and from the United States to Europe. Their geographical extension is dependent on climatic factors, which can influence their biology, each species having its own specificity and geographical distribution. Various Culicoides species have thus managed to colonise Europe and Culicoides imicola is responsible for the transmission of epizootics rife in Corsica since the year 2000. This vector species now seems to constitute an increasing threat for the continent.
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https://hal.inrae.fr/hal-02680990
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Submitted on : Sunday, May 31, 2020 - 10:54:18 PM
Last modification on : Wednesday, February 10, 2021 - 3:35:40 AM

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  • HAL Id : hal-02680990, version 1
  • PRODINRA : 145824

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Paul Périé, René Chermette, Yves Millemann, Stephan Zientara. Les Culicoides, diptères hématophages vecteurs de la fièvre catarrhale du mouton. Bulletin de l'Académie Vétérinaire de France, Académie vétérinaire de France, 2005, 158 (3), pp.213-224. ⟨hal-02680990⟩

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