Guimarães Antônio Marcos, Alves Endrigo Gabellini Leonel, de Rezende Glycia Ferreira, Rodrigues Marcelo Costa
Departamento de Medicina Veterinária, Universidade Federal de Lavras, Brazil.
Rev Saude Publica. 2005 Apr;39(2):293-5. doi: 10.1590/s0034-89102005000200022. Epub 2005 May 9.
Visceral and cutaneous larva migrans are parasitic zoonoses caused by the infection of larval nematodes Toxocara sp. and Ancylostoma sp. respectively. The objective of this study was to investigate the contamination by Toxocara sp. eggs and Ancylostoma sp. eggs and larva of soil samples collected from public parks and children's playground areas in state of Minas Gerais, Brazil, using both Baermann's method and centrifugal flotation technique. Toxocara sp. and Ancylostoma sp. eggs were observed in soil samples collected from public squares in 17.4% (4/23) and 69.6 (16/23) respectively. In schools and child day care settings the contamination by Ancylostoma sp. larva in sand samples was 11.1% (2/18). Public parks are settings of more potential risk of Toxocara sp. eggs and Ancylostoma sp. infection. Stool parasitology testing of 174 stool samples showed 58% and 23% of Ancylostoma sp and Toxocara sp eggs infection respectively.
内脏幼虫移行症和皮肤幼虫移行症分别是由线虫幼虫弓蛔虫属和钩虫属感染引起的寄生虫人畜共患病。本研究的目的是使用贝尔曼氏法和离心浮选技术，调查从巴西米纳斯吉拉斯州的公园和儿童游乐区采集的土壤样本中弓蛔虫属虫卵、钩虫属虫卵及幼虫的污染情况。在从公共广场采集的土壤样本中，分别观察到17.4%（4/23）的弓蛔虫属虫卵和69.6%（16/23）的钩虫属虫卵。在学校和日托机构中，沙样中的钩虫属幼虫污染率为11.1%（2/18）。公园是弓蛔虫属虫卵和钩虫属感染潜在风险更高的场所。对174份粪便样本进行的粪便寄生虫学检测显示，钩虫属和弓蛔虫属虫卵感染率分别为58%和23%。
