Mota Kelem Cristina Pereira, Grama Daliane Faria, Fava Natália M Nasser, Úngari Letícia Pereira, Faria Elaine Silva Marques, Cury Márcia Cristina
Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Minas Gerais, Brazil.
Rev Inst Med Trop Sao Paulo. 2018;60:e17. doi: 10.1590/s1678-9946201860017. Epub 2018 Apr 23.
Among the geohelminths, parasites from the Ascarididae family have a significant role in the human and animal health. This research aims to determine the prevalence of Ascarididae species in the soil in different areas located in a city of Minas Gerais State, Brazil (South America). The study was developed in squares, parks, sports clubs, orchards and municipal children's schools. Samples of sand/soil/grass were collected from January to August 2014. The optical microscope screening was performed through formal-ether and spontaneous sedimentation techniques. Out of the 183 collected samples, eight (4.4%) belonged to parks, 16 (8.7%) to sports clubs, 76 (41.5%) to squares, 23 (12.6%) to orchards, and 60 (32.8%) to schools. Out of the total, 28 (15.3%) contained Ascarididae eggs. Higher levels of positivity were demonstrated in the raining season (25.0%), in samples collected in the southern region of the town (25.1%), on ground soils (27.3%). Twenty-three (12.6%) were detected by the formal-ether sedimentation technique and 10 (5.5%) by spontaneous sedimentation technique. Therefore, it was concluded that the soils in the city of Uberlandia are contaminated with eggs and larvae of geohelminths, enabling dissemination of illnesses among animals and human beings.
在土源性蠕虫中，蛔科寄生虫对人类和动物健康具有重要影响。本研究旨在确定巴西（南美洲）米纳斯吉拉斯州一座城市不同区域土壤中蛔科物种的流行情况。该研究在广场、公园、体育俱乐部、果园和市立儿童学校开展。于2014年1月至8月采集沙/土/草样本。通过甲醛 - 乙醚和自然沉淀技术进行光学显微镜筛查。在采集的183个样本中，8个（4.4%）来自公园，16个（8.7%）来自体育俱乐部，76个（41.5%）来自广场，23个（12.6%）来自果园，60个（32.8%）来自学校。其中，28个（15.3%）含有蛔科虫卵。在雨季（25.0%）、城镇南部地区采集的样本（25.1%）以及地表土壤样本（27.3%）中，阳性率更高。通过甲醛 - 乙醚沉淀技术检测出23个（12.6%），通过自然沉淀技术检测出10个（5.5%）。因此，得出结论，乌贝兰迪亚市的土壤被土源性蠕虫的虫卵和幼虫污染，可能导致动物和人类疾病传播。
