Segeritz Lisa, Westhoff Katharina Mareike, Schaper Roland, Hermosilla Carlos, Taubert Anja
Institute of Parasitology, Faculty of Veterinary Medicine, Justus Liebig University Giessen, 35392 Giessen, Germany.
Independent Researcher, 51381 Leverkusen, Germany.
Pathogens. 2022 Jun 30;11(7):747. doi: 10.3390/pathogens11070747.
, and can cause severe cardiovascular and pulmonary symptoms in companion animals and wildlife. Recently, these nematodes were reported to spread within Europe and South America. The reasons behind this are still unknown, but obligate gastropod intermediate host populations might play a role. Therefore, lungworm infections in terrestrial slug populations in selected geographic areas of the Federal States of Bavaria and of Baden-Wuerttemberg, Germany, were studied. In total, 517 slugs (462 spp., 51 , one , and three unknown slug species) were collected in the summer and autumn seasons, artificially digested and microscopically and molecularly analyzed for the presence of metastrongyloid lungworm larvae. Overall, gastropods showed a prevalence of 11.61% (60/517) for , 1.74% (9/517) for , 0.77% (4/517) for and 0.97% (5/517) for infections, respectively. In Obrigheim (Baden-Wuerttemberg), a hyperendemic focus of canine angiostrongylosis was identified. Here, gastropod infection rates rose from 13.60% (17/125) to 62.96% (34/54) within a few months. In total, 25.61% (84/328) of analysed terrestrial gastropods from Baden-Wuerttemberg were positive for metastrongyloids. In contrast, Bavarian gastropods showed a much lower prevalence of 4.76% (9/189). For the first time, the presence of was confirmed for spp. in Baden-Wuerttemberg via molecular analyses. Overall, the current data confirm that canine angiostrongylosis occurs in hyperendemic foci in certain geographic areas with high infection rates in intermediate host populations. As a result, the prevalence for a specific region can rise remarkably within a short period of time. Thus, for a better understanding of lungworm epidemiology in Germany and to protect dogs from angiostrongylosis in hyperendemic foci, it seems mandatory to enhance current efforts on Metastrongyloidea-targeted monitoring on a geographical and time span-related level.
[寄生虫名称]和[寄生虫名称]可在伴侣动物和野生动物中引发严重的心血管和肺部症状。最近，据报道这些线虫在欧洲和南美洲蔓延。其背后的原因尚不清楚，但专性腹足类中间宿主种群可能起到了一定作用。因此，对德国巴伐利亚州和巴登 - 符腾堡州选定地理区域的陆生蛞蝓种群中的肺线虫感染情况进行了研究。总共在夏季和秋季收集了517只蛞蝓（462只为[蛞蝓种类1]，51只为[蛞蝓种类2]，1只为[蛞蝓种类3]，3只为未知蛞蝓种类），进行人工消化，并通过显微镜和分子分析检测类圆线虫肺线虫幼虫的存在情况。总体而言，腹足类动物中[寄生虫名称1]的感染率为11.61%（60/517），[寄生虫名称2]为1.74%（9/517），[寄生虫名称3]为0.77%（4/517），[寄生虫名称4]为0.97%（5/517）。在奥布里希姆（巴登 - 符腾堡州），发现了犬血管圆线虫病的高度流行区。在此，腹足类动物的感染率在几个月内从13.60%（17/125）升至62.96%（34/54）。总共，来自巴登 - 符腾堡州的25.61%（84/328）的分析陆生腹足类动物类圆线虫呈阳性。相比之下，巴伐利亚州的腹足类动物感染率低得多，为4.76%（9/189）。通过分子分析首次在巴登 - 符腾堡州的[蛞蝓种类]中证实了[寄生虫名称]的存在。总体而言，当前数据证实犬血管圆线虫病在某些地理区域的高度流行区发生，中间宿主种群感染率很高。因此，特定区域的感染率可在短时间内显著上升。所以，为了更好地了解德国的肺线虫流行病学，并保护犬类免受高度流行区血管圆线虫病的侵害，似乎必须在地理和时间跨度相关层面加强目前针对类圆线虫的监测工作。
