Culicoides species responsible for the transmission of Epizootic Haemorrhagic Disease virus (EHDV) serotype 8 in Italy


Epizootic hemorrhagic disease virus (EHDV)

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Quaglia, M., Foxi, C., Satta, G., Puggioni, G. ., Bechere, R. ., De Ascentis, M., d’Alessio, S. G., Spedicato, M. ., Leone, A., Pisciella, M. ., Portanti, O., Teodori, L., Di Gialleonardo, L. ., Cammà, C., Savini, G., & Goffredo, M. (2023). Culicoides species responsible for the transmission of Epizootic Haemorrhagic Disease virus (EHDV) serotype 8 in Italy. Veterinaria Italiana, 59(1). https://doi.org/10.12834/VetIt.3347.22208.1

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Epizootic haemorrhagic disease (EHD) is a viral disease transmitted by Culicoides biting midges that affects wild and domestic ruminants. The causative agent, EHD virus (EHDV), belongs to the family Sedoreoviridae, genus Orbivirus. The virus has never been reported in Europe until October 2022, when the virus was for the first time detected in Sicily and Sardinia. After the first clinical cases, an intensive entomological field activity was carried out in five EHD affected farms located in Sardinia, with the aim of assessing the EHDV vector competence in European species of Culicoides. EHDV‑8 was detected in C. imicola, C. obsoletus/scoticus, C. newsteadi, C. pulicaris ss, and C. bysta. The first 4 species have also been demonstrated to be able to transmit bluetongue virus (BTV). According to these results, it is likely that EHDV‑8, sharing the same transmission patterns of BTV, can also spread to Europe.



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Copyright (c) 2023 Michela Quaglia, Cipriano Foxi, Giuseppe Satta, Giantonella Puggioni, Robero Bechere, Matteo De Ascentis, Silvio Gerardo d'Alessio, Massimo Spedicato, Alessandra Leone, Maura Pisciella, Ottavio Portanti, Liana Teodori, Luigina Di Gialleonardo, Cesare Cammà, Giovanni Savini, Maria Goffredo