Salmonellosis is the second most prevalent zoonosis in Europe and it has considerable economic and health implications for its monitoring and control as well as being among the most prevalent pathogens on livestock farms. The wild boar (Sus scrofa) has been identified as a competent host and spreader of Salmonella spp. There has been a significant increase in wild boar population in Europe in recent decades, and it is even present in urban areas. This study evaluates the spatial distribution of the seroprevalence of Salmonella spp. in wild boar from Murcia (Southeast Spain) and its relationship with host-related risk factors (sex, age, location and density). The presence of antibodies against S. Typhimurium and Choleraesuis in 269 serum of wild boars hunted in Murcia between 2015 and 2019 were analyzed using a commercial ELISA test (PrioCHECK porcine Salmonella kit). The seroprevalence were spatially distributed using Kernel function, and wild boar density using Gaussian kernel estimates (spatialEco version 1.1.1). The risk function was estimated as the ratio between the intensity of positive samples and the wild boar density The overall seroprevalence was 19.3% (IC95% 16.9–21.8), showing a significant spatial aggregation. The highest seroprevalence detected was 51.8% (IC95% 42.2–61.5) in a specific area with high risk of infection (76–100%) and was related to the wild boar density. Only marginal differences were detected for sex and age. The use of ELISA combined with QGIS (version 3.6.0) has allowed the identification of areas of Salmonella occurrence associated with high density as risk factor.

沙门氏菌病是欧洲第二大最普遍的人畜共患病，它对其监测和控制具有重大的经济和健康影响，并且是畜牧场中最普遍的病原体之一。野猪（Sus scrofa）已被确认为沙门氏菌属的合格宿主和传播者。近几十年来，欧洲野猪种群大量增加，甚至在城市地区也存在。本研究评估了沙门氏菌血清阳性率的空间分布。来自西班牙东南部穆尔西亚（Murcia）的野猪中的这种病毒及其与寄主相关危险因素（性别，年龄，位置和密度）的关系。抗S抗体的存在。使用商业ELISA试验（PrioCHECK猪沙门氏菌试剂盒）分析了2015年至2019年在穆尔西亚猎获的269只野猪血清中的鼠伤寒和霍乱沙门氏菌。血清阳性率使用核函数在空间上分布，野猪密度使用高斯核估计（spatialEco版本1.1.1）进行空间分布。风险函数估计为阳性样本强度与野猪密度之间的比率。总体血清阳性率为19.3％（IC95％为16.9-21.8），显示出明显的空间聚集。在具有高感染风险（76-100％）的特定区域中，检测到的最高血清阳性率是51.8％（IC95％42.2–61.5），并且与野猪密度有关。在性别和年龄方面仅检测到边缘差异。ELISA与QGIS（3.6.0版）的结合使用可以识别沙门氏菌的发生与高密度有关是危险因素。