突尼斯国内反刍动物中裂谷热血清学证据强调了有效监测的必要性。
Serological evidence of Rift Valley fever in domestic ruminants in Tunisia underlines the need for effective surveillance.
机构信息
Tunisian Institute of Veterinary Research, Rue Djebel Lakhdhar, University of Tunis El Manar, Tunis, Tunisia.
Faculty of Sciences of Bizerte, Carthage University, Tunis, Tunisia.
出版信息
Open Vet J. 2021 Jul-Sep;11(3):337-341. doi: 10.5455/OVJ.2021.v11.i3.1. Epub 2021 Jul 9.
BACKGROUND
Rift Valley fever (RVF) is an infectious zoonotic disease infecting, mainly, domestic ruminants and causing significant economic and public health problems. RVF is a vector-borne disease transmitted by mosquitoes.
AIM
In this work, we tried to seek any RVF virus circulation in Tunisia.
METHODS
Thus, we investigated 1,723 sera from different parts of Tunisia, collected in 2009 and 2013-2015 from sheep, goats, cattle, and dromedaries. All sera were assessed using enzyme-linked immunosorbent assay techniques.
RESULTS
Eighty-seven sera were detected positive and 11 doubtful. All of them were investigated by the virus-neutralization technique (VNT), which confirmed the positivity of three sera.
CONCLUSION
This is the first case of RVF seropositive confirmed by the VNT in Tunisian ruminants. Such a result was expected considering the climate, entomology, and geographic location of the country. Further investigations must enhance our findings to understand the RVF epidemiologic situation better and implement risk-based surveillance programs and effective control strategies.
背景
裂谷热（RVF）是一种感染、主要感染家畜反刍动物的传染性人畜共患病，给经济和公共卫生带来严重问题。裂谷热是一种由蚊子传播的虫媒病。
目的
在这项工作中，我们试图寻找突尼斯的裂谷热病毒传播。
方法
因此，我们调查了来自突尼斯不同地区的 1723 份血清，这些血清分别于 2009 年和 2013-2015 年从绵羊、山羊、牛和单峰骆驼中采集。所有血清均采用酶联免疫吸附试验技术进行评估。
结果
87 份血清检测为阳性，11 份血清检测为可疑。所有血清均采用病毒中和试验（VNT）进行了调查，该试验证实了 3 份血清的阳性。
结论
这是首例通过 VNT 在突尼斯反刍动物中确认的裂谷热血清阳性病例。考虑到该国的气候、昆虫学和地理位置，出现这种结果是可以预期的。需要进一步的调查来增强我们的发现，以更好地了解裂谷热的流行病学情况，并实施基于风险的监测计划和有效的控制策略。
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