Marques Jacó Pereira, Guimarães Catarina de Rezende, Boas Ailton Vilas, Carnaúba Paulo Usignolo, Moraes Josué de
Supervisão de Vigilância em Saúde, SUVIS Casa Verde, Secretaria de Saúde da Cidade de São Paulo, SP, Brazil.
Rev Inst Med Trop Sao Paulo. 2012 Sep-Oct;54(5):267-71. doi: 10.1590/s0036-46652012000500006.
The contaminated soil with mammal feces is an important factor of risk to infection with zoonotic diseases. Amongst these zoonoses are visceral larva migrans and cutaneous larva migrans caused by Toxocara spp. and Ancylostoma spp., respectively. The aim of this study was to assess the environmental contamination by Toxocara spp. eggs and hookworms (Ancylostoma spp.) in public parks and squares in the city of Guarulhos, a metropolitan area of São Paulo, São Paulo State, Brazil. Soil samples were collected, between September and December 2010, and examined using the centrifugal flotation technique with sodium dichromate and zinc sulphate as well as the modified Baermann method. Notably, 35 (74.5%) of the 47 districts surveyed in Guarulhos possessed samples contaminated with Toxocara spp. and/or eggs or larvae of Ancylostoma spp. The frequency of Toxocara spp. and Ancylostoma spp. in the samples from public areas was 68.1% and 46.8%, respectively. Overall, the eastern side of Guarulhos is the region with the highest occurrence of causative agents of larva migrans. In all collection sites, the presence of feces from dogs and cats accompanied by their owners and stray animals were observed. Notably, it is important to adopt measures to control dog and cat breeding, to treat infected animals, and provide health education to the population.
被哺乳动物粪便污染的土壤是感染人畜共患病风险的重要因素。其中，内脏幼虫移行症和皮肤幼虫移行症分别由弓首蛔虫属和钩口线虫属引起。本研究的目的是评估巴西圣保罗州大圣保罗地区瓜鲁柳斯市公园和广场中弓首蛔虫属虫卵和钩虫（钩口线虫属）对环境的污染情况。于2010年9月至12月采集土壤样本，并采用重铬酸钠和硫酸锌离心浮选技术以及改良贝曼法进行检测。值得注意的是，在瓜鲁柳斯市调查的47个区域中，有35个（74.5%）区域的样本被弓首蛔虫属和/或钩口线虫属的虫卵或幼虫污染。公共区域样本中弓首蛔虫属和钩口线虫属的检出率分别为68.1%和46.8%。总体而言，瓜鲁柳斯市东部是幼虫移行症病原体发生率最高的区域。在所有采集地点，均观察到有狗和猫的粪便，这些粪便来自其主人饲养的宠物以及流浪动物。值得注意的是，采取措施控制猫狗繁殖、治疗感染动物并对民众进行健康教育非常重要。
