Parásitos humanos en aguas superficiales de uso recreativo en Salta, Argentina

IF 1.8 4区 生物学 Q4 MICROBIOLOGY
Diego G. Sanguino-Jorquera , Hugo R. Poma , Verónica B. Rajal , María M. Juárez , Verónica P. Irazusta
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Abstract

Waterborne diseases can have different origins, micro-organisms such as bacteria and parasites being the most important ones. In this study, two recreational aquatic environments were studied in the province of Salta, Argentina. Water samples collected from three different locations, two from a creek and one from the outlet of a thermal complex, were monitored at four time points. Physicochemical and microbiological characterization of each point was conducted, as well as a search for parasites and amebae. Parasites were identified through optical microscopy observations and free-living amebae (FLA) were isolated by spiking in Petri dishes followed by subsequent molecular identification. Water samples from the outlet of the thermal complex showed different physicochemical characteristics from those of the creek. Bacterial indicators of contamination were detected at all points; however, the creek water had a significantly higher concentration of Pseudomonas sp. Sporadically, creek samples exhibited Ascaris spp. eggs, Giardia sp. cysts, and ancylostomid eggs. The presence of FLA was observed in all samples, 15 of which were isolated and identified as Acanthamoeba sp., mostly belonging to the T4 genotype. Parasite surveillance in recreational aquatic environments is an important complement to traditional microbial indicators for assessing water quality. The identified parasites represent a potential health risk for people using these environments.

阿根廷萨尔塔娱乐性地表水中的人体寄生虫
水传播疾病有不同的起源;细菌和寄生虫是最重要的致病因子。在这项工作中,我们在萨尔塔省(阿根廷)一个休闲区附近的三个地点对水样进行了监测:两个地点位于一个热能综合体周围的溪流中,分别位于综合体排水口的上游和下游;第三个地点位于综合体排水口。一年中有四个月采集样本。对每个取样点的水样进行了物理化学和细菌学鉴定,并对水中的寄生虫和自由生活阿米巴虫(FLA)进行了检测。热工综合体出口处的水样显示出与溪流不同的物理化学特征。溪水样本中零星发现了蛔虫卵、贾第鞭毛虫包囊和蛔虫卵。在所有样本中都发现了 AVL;分离并鉴定出 15 个 AVL 为棘阿米巴虫,大部分属于 T4 基因型。对休闲水生环境中寄生虫的监测是对传统水质评估微生物指标的重要补充。所发现的寄生虫对使用这类环境的人群构成潜在的健康风险。
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来源期刊
CiteScore
3.30
自引率
0.00%
发文量
46
审稿时长
>12 weeks
期刊介绍: La Revista Argentina de Microbiología es una publicación trimestral editada por la Asociación Argentina de Microbiología y destinada a la difusión de trabajos científicos en las distintas áreas de la Microbiología. La Asociación Argentina de Microbiología se reserva los derechos de propiedad y reproducción del material aceptado y publicado.
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