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Experimental infection of cattle, sheep, and goats with the newly emerged epizootic hemorrhagic disease virus serotype 8
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Keywords

EHDV
cattle
sheep
goats

How to Cite

Spedicato, M., Profeta, F., Thabet, S., Teodori, L., Leone, A., Portanti, O., Pisciella, M., Bonfini, B., Pulsoni, S., Rosso, F., Rossi, E., Ripà, P., De Rosa, A., Ciarrocchi, E., Irelli, R., Cocco, A., Sailleu, C., Ferri, N., Di Febo, T., Vitour, D., Breard, E., Giansante, D., Sghaier, S., Ben Hassine, T. ., Zientara, S., Salini, R., Hammami, S., Savini, G., & Lorusso, A. (2023). Experimental infection of cattle, sheep, and goats with the newly emerged epizootic hemorrhagic disease virus serotype 8. Veterinaria Italiana, 59(4). https://doi.org/10.12834/VetIt.3433.23112.1

Funding data

  • Ministero dell'Università e della Ricerca
    Grant numbers A novel integrated and sustainable approach to monitor and control Bluetongue spreadin the Mediterranean Basin (Blue-Med)
  • Ministero della Salute
    Grant numbers Studio dei principali aspetti epidemiologici, clinico‑ patologici e virologici di EHD al fine di valutarne l’evoluzione e supportare la early detection attraverso adeguati piani di sorveglianza"

Abstract

Epizootic hemorrhagic disease virus serotype 8 (EHDV-8) emerged in Europe for the first time in late 2022. In this study, we investigated the kinetics of EHDV-8 infection in cattle, sheep, and goats.  Following experimental infection with EHDV-8, four out of five calves displayed fever, while another calf exhibited ulcerative and crusty lesions of the muzzle. RNAemia peaked at day 7 post infection in all calves and remained relatively stable till the end of the study, at 78 days post infection. Infectious virus was isolated up to 21 days post infection in one calf. As far as small ruminants are concerned, one sheep experienced fever and two out of five had consistent RNAemia that lasted until the end of the study. Remarkably, infectious virus was evidenced at day 7 post infection in one sheep. In goats, no RNA was observed. All infected animals seroconverted, and a neutralizing immune response was observed in all species, with calves exhibiting a more robust response than sheep and goats.

Our study provides insights into the kinetics of EHDV-8 infection and the host immune responses. We also highlight that sheep may also play a role in EHDV-8 epidemiology. Altogether, the data gathered in this study could have important implications for disease control and prevention strategies, providing crucial information to policy makers to mitigate the impact of this viral disease on livestock.

https://doi.org/10.12834/VetIt.3433.23112.1
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Copyright (c) 2020 Massimo Spedicato, Francesca Profeta, Sarah Thabet, Liana Teodori, Alessandra Leone, Ottavio Portanti, Maura Pisciella, Barbara Bonfini, Simone Pulsoni, Francesca Rosso, Emanuela Rossi, Paola Ripà, Angela De Rosa, Eugenia Ciarrocchi, Roberta Irelli, Antonio Cocco, Corinne Sailleu, Nicola Ferri, Tiziana Di Febo, Damien Vitour, Emmanuel Breard, Daniele Giansante, Soufien Sghaier, Thameur Ben Hassine, Stephan Zientara, Romolo Salini, Salah Hammami, Giovanni Savini, Alessio Lorusso