High relative abundance of the stable fly Stomoxys calcitrans is associated with lumpy skin disease outbreaks in Israeli dairy farms
High relative abundance of the stable fly Stomoxys calcitrans is associated with lumpy skin disease outbreaks in Israeli dairy farms
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DOI：
10.1111/mve.12217
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发表时间：
2017-06-01
影响因子：
1.9
通讯作者：
Gottlieb, Y.
中科院分区：
文献类型：
--
作者：
Kahana-Sutin, E.;Klement, E.;Gottlieb, Y.
目前还不清楚狼皮病（LSD）的媒介，这是一种影响牛科的病毒性疾病。为了评估LSD病毒（LSDV）在田间条件下的可能载体，在1-2年前受LSD影响的奶牛场进行了为期一年的双翅目诱捕。这样做是为了计算全年每个农场中每种双翅目昆虫的每月相对丰度。在爆发的月份（12月和4月），Stomoxys calcitrans（双翅目：家蝇）的相对丰度显着高于其他双翅目。一个基于受影响地区天气参数的稳定苍蝇种群模型被用来验证这些发现。其结果与S.钙聚糖丰度。该模型以流行年的气象参数为基础，表明S。在所研究的农场中，在LSD发作的月份中，降钙素群体达到峰值。这些观察和模型预测显示，在10月和11月，当LSD影响邻近的放牧牛群时，稳定的苍蝇丰度较低。这些结果表明，S。calcitrans是奶牛场中LSD的潜在媒介，另一种媒介可能参与LSDV在放牧牛群中的传播。这些发现应随后进行病媒能力研究。
The vector of lumpy skin disease (LSD), a viral disease affecting Bovidae, is currently unknown. To evaluate the possible vector of LSD virus (LSDV) under field conditions, a yearlong trapping of dipterans was conducted in dairy farms that had been affected by LSD, 1-2 years previously. This was done in order to calculate monthly relative abundances of each dipteran in each farm throughout the year. The relative abundances of Stomoxys calcitrans (Diptera: Muscidae) in the months parallel to the outbreaks (December and April) were significantly higher than those of other dipterans. A stable fly population model based on weather parameters for the affected area was used to validate these findings. Its results were significantly correlated with S. calcitrans abundance. This model, based on weather parameters during the epidemic years showed that S. calcitrans populations peaked in the months of LSD onset in the studied farms. These observations and model predictions revealed a lower abundance of stable flies during October and November, when LSD affected adjacent grazing beef herds. These findings therefore suggest that S. calcitrans is a potential vector of LSD in dairy farms and that another vector is probably involved in LSDV transmission in grazing herds. These findings should be followed up with vector competence studies.