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<p>Epizootic hemorrhagic disease (EHD) and Bluetongue (BT) are vector-borne diseases that commonly circulate among wild and domestic ruminants. The epidemiological situation of EHD in Tunisia remains poorly documented, despite several studies having been conducted on BT. To assess the seroprevalence of the EHD and BT in northern Tunisia, 394 bovine serum samples were collected and tested for anti-VP7 antibodies using a competitive ELISA. The seroprevalence of EHD and BT at the individual level was estimated 51.2% and 81% respectively. Herd-level seroprevalence reached 93% for EHD and 100% for BT. No statistically significant differences in prevalence were observed between governorates for EHD (p-value = 0.169). However, the prevalence of BT across governorates was found to be statistically significant (p-value = 0.00000). A multivariable mixed-effects logistic regression was conducted to identify risk factors for EHD and BT. The final model revealed the only significant risk factor identified for both EHD and BT seroprevalence was age. Local animal husbandry practices and herd management were not found to be associated with the dynamics of the two diseases. The findings of this study highlight the geographical extent of the disease in the northwestern region and its associated risk factors. It is therefore imperative that further investigations be conducted on vectors and their abudance in order to gain a comprehensive understanding of the current situation.</p>

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Seroprevalence and risk factors of epizootic hemorrhagic disease and bluetongue in Northwestern Tunisia: a comprehensive seroepidemiological study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月24日

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  • Imed Ben Slimen,
  • Sana Kalthoum,
  • Aida Tlatli,
  • Soufien Sghaier,
  • Aida Megdich,
  • Hanen Ncibi,
  • Chafik Ben Salah,
  • Ilyes Arfaoui,
  • Mohamed yahya Dalhoumi,
  • Marwa Sallami,
  • Raja Gharbi,
  • Kaoutker Guesmi,
  • Sonia Ben Hsan,
  • Salma Hadouchi,
  • Mohamed Naceur Baccar

摘要

Epizootic hemorrhagic disease (EHD) and Bluetongue (BT) are vector-borne diseases that commonly circulate among wild and domestic ruminants. The epidemiological situation of EHD in Tunisia remains poorly documented, despite several studies having been conducted on BT. To assess the seroprevalence of the EHD and BT in northern Tunisia, 394 bovine serum samples were collected and tested for anti-VP7 antibodies using a competitive ELISA. The seroprevalence of EHD and BT at the individual level was estimated 51.2% and 81% respectively. Herd-level seroprevalence reached 93% for EHD and 100% for BT. No statistically significant differences in prevalence were observed between governorates for EHD (p-value = 0.169). However, the prevalence of BT across governorates was found to be statistically significant (p-value = 0.00000). A multivariable mixed-effects logistic regression was conducted to identify risk factors for EHD and BT. The final model revealed the only significant risk factor identified for both EHD and BT seroprevalence was age. Local animal husbandry practices and herd management were not found to be associated with the dynamics of the two diseases. The findings of this study highlight the geographical extent of the disease in the northwestern region and its associated risk factors. It is therefore imperative that further investigations be conducted on vectors and their abudance in order to gain a comprehensive understanding of the current situation.