这项研究描述了Bengkalis地区牛的结块皮肤病(LSD)的首次爆发,印度尼西亚,和疫苗接种以控制疫情。有关疫情和疫苗接种的数据是从Bengkalis地区的当地兽医当局获得的,印度尼西亚。气象部门提供了气候数据,气候学,和辽省地球物理机构。在这5.5个月里,这次疫情导致受感染农场牛的发病率为10.4%(94/906),死亡率为0.6%(6/906)。暂时,爆发期间发生了三次疫情。牛种群>150只动物的村庄(n=36)感染LSD的可能性是牛种群较小的村庄(n=107)的5.3倍(CI:2.56-10.90,P<0.01)。疫苗接种运动覆盖了病例半径10公里内村庄的43.8%的牛。然而,与牛群较小的村庄(n=41)相比,牛群较多的村庄(n=29)的疫苗接种覆盖50%的牛群的可能性较低0.63(CI:0.39-1.02,P=0.05).当前两次和主要波浪停止时,疫苗接种仅覆盖0.0%(n=6036),在各自空间簇的10km半径内,牛的27.8%(n=6,036)和9.7%(n=5,697)。疫情与降雨及其与温度的相互作用具有统计学相关性(F(2,13)=5.822,R2=0.47,P=0.016)。这项研究表明,LSD爆发的发病率和死亡率较低。尽管疫苗接种率低,疫情停止了,可能是由于昆虫媒介的数量暴跌。
This study describes the first outbreak of Lumpy Skin Disease (LSD) in cattle in the Bengkalis region, Indonesia, and vaccination to control the epidemic. Data on the outbreak and vaccination was obtained from the local veterinary authority of the Bengkalis region, Indonesia. Climatological data was provided by the Meteorological, Climatological, and Geophysical Agency of Riau Province. Over the 5.5 months, the outbreak caused 10.4% (94/906) morbidity and 0.6% (6/906) mortality of cattle on infected farms. Temporally, three epidemic waves occurred during the outbreak period. Villages with cattle populations of > 150 animals (n = 36) were 5.3 times more likely to be infected with LSD compared to villages with smaller cattle populations (n = 107) (CI: 2.56-10.90, P < 0.01). The vaccination campaign covered 43.8% of cattle in villages within a 10 km radius of the cases. However, vaccination in villages with larger cattle populations (n = 29) was 0.63 less likely to cover 50% of the cattle populations compared to villages with smaller cattle populations (n = 41) (CI: 0.39-1.02, P = 0.05). By the time the first two and the major waves ceased, vaccination had covered only 0.0% (n = 6036), 27.8% (n = 6,036) and 9.7% (n = 5,697) of the cattle in the 10 km radius of the respective spatial clusters. The outbreak was statistically associated with rainfall and its interaction with temperature (F(2, 13) = 5.822, R2 = 0.47, P = 0.016). This study indicates that the LSD outbreak had low morbidity and mortality. Despite the low vaccination rate, the outbreak ceased, possibly due to plummeting of the abundance of insect vectors.