Risk assessment of the introduction of Rift Valley fever from the Horn of Africa to Yemen via legal trade of small ruminants
Risk assessment of the introduction of Rift Valley fever from the Horn of Africa to Yemen via legal trade of small ruminants
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DOI：
10.1007/s11250-010-9719-7
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发表时间：
2011-02-01
影响因子：
1.7
通讯作者：
Chevalier, Veronique
中科院分区：
文献类型：
--
作者：
Abdo-Salem, Shaif;Waret-Szkuta, Agnes;Chevalier, Veronique
裂谷热 (RVF) 是一种由蚊子传播的病毒性人畜共患病，在全球范围内的重要性日益增加。自 1930 年以来，这种病毒在整个非洲都有发生，2000 年 9 月在沙特阿拉伯和也门首次发现，导致人类死亡和牲畜数量的重大损失。假设该病毒尚未在也门存活或已以低水平传播，作者定性评估了通过从非洲之角合法进口小型反刍动物将裂谷热“重新引入”也门的可能性。总体引入概率被评估为非常低到中等，在节日期间增加，并且在考虑直接传播暴露时与矢量传播暴露相比更高。不确定性被认为是中等程度，凸显了该地区需要填补的信息方面的重大差距。提出并讨论了降低风险的方案，包括对也门现行检疫系统的可能改进。
Rift Valley fever (RVF) is a mosquito-borne viral zoonosis of increasing global importance. Occurring since 1930 across Africa, it was detected for the first time in Saudi Arabia and Yemen in September 2000, leading to human deaths and major losses in livestock populations. Assuming the virus has not survived in Yemen or has been circulating at a low level, authors qualitatively assessed the likelihood of "re-introduction" of RVF into Yemen through the legal importation of small ruminants from the Horn of Africa. The overall probability of introduction was assessed very low to medium, increasing during festival periods and higher when considering a direct transmission exposure as compared to a vectorial transmission exposure. The uncertainty was considered to be medium underlining important gaps in information that need to be fulfilled in the region. Options to reduce the risk are proposed and discussed, including possible improvements of the current Yemeni quarantine system.