Summary Regarding geographical distribution and clinical relevance, the most common canine geohelminths are Toxocara canis, ancylostomatids, and Trichuris vulpis. Canine intestinal parasites from the soil and sand present an important potential serious human health hazard, especially for the children preschool and school – age. This paper aimed to establish the degree of contamination of soil and sand with zoonotic parasites from the canine feces and the degree of risk they could pose for human health in public places and playgrounds in the city of Niš. Our parasitological study involved 200 soil samples and 50 sand samples from the public parks in the city of Niš in southeastern Serbia (43°19′15″N, 21°53′45″ E). From several locations, about 100 g of soil and sand was collected based on the bioclimatic indices. Parasitological diagnosis was performed using conventional qualitative and quantitative coprological methods, abiding by the recommendations about the diagnosis of parasitic diseases. In 38 – 46 % of soil samples and 40 % of sand samples seven species of endoparasites were diagnosed. In the samples of soil, a medium and high degree of contamination with the ascarid T. canis (14 – 22 %) was detected, as well as a low and medium degree of contamination with ancylostomatids (4 – 12 %), and in the samples of sand, a variable degree of contamination with the helminths T. canis (26 %) and A. alata (16 %) was found. A statistically significant difference was found in the contamination with A. alata eggs between the samples of sand and samples of soil. The studied public surfaces represent the reservoir of zoonotic parasites, which is a public health problem requiring a synergistic action of several factors to be successfully resolved, i.e. the implementation of prevention, surveillance, and control measures.

中文翻译：

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犬肠道寄生虫卵对土壤和沙子的污染是尼什（塞尔维亚）公园人类健康的危险因素

总结 关于地理分布和临床相关性，最常见的犬地蠕虫是犬弓首蛔虫、钩口虫和外阴鞭虫。来自土壤和沙子的犬肠道寄生虫对人类健康构成重要的潜在严重危害，特别是对于学龄前和学龄儿童。本文旨在确定土壤和沙子被犬类粪便中的人畜共患病寄生虫污染的程度，以及它们对 Niš 市公共场所和游乐场中的人类健康构成的风险程度。我们的寄生虫学研究涉及来自塞尔维亚东南部 Niš 市（43°19′15″N，21°53′45″E）公园的 200 个土壤样本和 50 个沙子样本。根据生物气候指数，从多个地点收集了约 100 克土壤和沙子。寄生虫学诊断采用常规的定性和定量粪便学方法进行，遵守有关寄生虫病诊断的建议。在 38-46% 的土壤样本和 40% 的沙子样本中，诊断出七种内寄生虫。在土壤样本中，检测到犬蛔虫的中度和高度污染（14 – 22 %），以及钩虫的中度污染（4 – 12 %），在在沙子样本中，发现了不同程度的蠕虫 T. canis (26%) 和 A. alata (16%) 污染。在沙子样品和土壤样品之间的 A. alata 卵污染方面发现了统计学上的显着差异。研究的公共表面代表了人畜共患寄生虫的储存库，