Abstract：
The first case of African swine fever in domestic pigs in Serbia was in 2019. The following year, the disease was confirmed in wild boar. Thenceforth, ASF has been continuously reported in both wild and domestic pigs. The outbreaks in domestic pigs could not be linked directly to wild boars, even though wild boars were endemically infected, and reservoirs for ASF. This study aimed to investigate outbreaks and routes of transmission in domestic pigs in a region of central Serbia where no outbreaks in wild boar were reported. Fourteen outbreaks of ASF on backyard farms with low biosecurity were traced back, and no connection to wild boar was found. The epidemic investigation covered 2094 holdings, with 24,368 pigs, out of which 1882 were tested for ASF. In surrounding hunting grounds, field searches were conducted. Dead wild boars were found, and 138 hunted wild boars were negative for ASFV. It was concluded that outbreaks in 2021 were provoked by the illegal trade of live animals and pig products. Even though infective pressure from wild boars is assumed, no positive cases have been found, while the ASFV spreads within the domestic swine population evidenced in four recent outbreaks in 2022.
摘要：
2019年塞尔维亚国内猪只出现首例非洲猪瘟。第二年,这种疾病在野猪中得到证实。此后,在野猪和家猪中连续报道了ASF。家猪的爆发与野猪没有直接联系，即使野猪是地方性感染，和ASF的水库。这项研究旨在调查塞尔维亚中部地区的家猪的暴发和传播途径，该地区没有野猪暴发的报道。可追溯到生物安全性低的后院农场爆发了14次ASF，没有发现与野猪的联系.疫情调查涵盖2094家持股，有24,368头猪,其中1882年进行了ASF测试。在周围的猎场，进行了实地搜索。发现了死野猪,138只被猎杀的野猪对ASFV呈阴性。得出的结论是，2021年的疫情是由活体动物和猪产品的非法贸易引发的。即使假设野猪的感染压力，没有发现阳性病例，而ASFV在国内猪群中的传播在2022年最近的四次疫情中得到了证明。
