Ziliotto Marina, Ellwanger Joel Henrique, Chies José Artur Bogo
Laboratory of Immunobiology and Immunogenetics, Department of Genetics, Postgraduate Program in Genetics and Molecular Biology (PPGBM), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
Sci One Health. 2023 May 10;1:100016. doi: 10.1016/j.soh.2023.100016. eCollection 2022 Nov.
Soil harbours enormous biodiversity, essential for maintaining environmental and human health. However, soil can also be a reservoir of various parasitic pathogens, such as soil-transmitted helminths (STH). We evaluated the presence of STH (e.g., hookworms, roundworms and whipworms) in soil samples collected at twenty points within the perimeter of (a university campus belonging to the Federal University of Rio Grande do Sul - UFRGS), during 2022 winter season. Considering the One Health perspective, human, animal and environment-related data from each sampling point were collected. All soil samples showed nematode larvae, representing natural components of soil biodiversity. Considering STH eggs, 35% ( = 7) of soil samples showed hookworm eggs (e.g., from or ), 10% ( = 2) showed roundworm () eggs, and 5% ( = 1) showed whipworm (-like) eggs. Of note, 10% of the sampling points showed the presence of rhabditiform hookworm larvae, 5% showed rhabditiform larvae and 5% had the presence of filariform hookworm larvae, indicating a risk of human percutaneous infection. The significant people circulation in , in association with other environment-related factors, help to explain the prevalence of STH observed in this study.
土壤中蕴藏着丰富的生物多样性，这对维持环境和人类健康至关重要。然而，土壤也可能是各种寄生性病原体的储存库，例如土源性蠕虫（STH）。我们评估了2022年冬季在南里奥格兰德联邦大学（UFRGS）校园周边20个点采集的土壤样本中土源性蠕虫（如钩虫、蛔虫和鞭虫）的存在情况。从“同一健康”的角度出发，收集了每个采样点与人类、动物和环境相关的数据。所有土壤样本均显示有线虫幼虫，它们是土壤生物多样性的天然组成部分。考虑到土源性蠕虫卵，35%（n = 7）的土壤样本显示有钩虫卵（如来自十二指肠钩虫或美洲钩虫），10%（n = 2）显示有蛔虫卵，5%（n = 1）显示有鞭虫样卵。值得注意的是，10%的采样点显示有杆状蚴型钩虫幼虫，5%显示有美洲板口线虫杆状蚴，5%有丝状蚴型钩虫幼虫，这表明存在人类经皮感染的风险。该校园内大量的人员流动，再加上其他与环境相关的因素，有助于解释本研究中观察到的土源性蠕虫的流行情况。
