Toxocara spp. eggs in public squares of Sorocaba, São Paulo State, Brazil

Revista do Instituto de Medicina Tropical de São Paulo

Lina Maria De Petrini Da Silva Coelho²  Carlos Yoshizaki Dini²  Mauro Henrique De Sá Adami Milman²  Sônia Maria De Oliveira¹ 

[1],PUC-SP Centro de Ciências Médicas e Biológicas ,Brazil

关键词: Toxocara;    Public facilities;    Larva migrans;    Visceral;   

DOI  :  10.1590/S0036-46652001000400002

来源: SciELO

【 摘 要 】

The visceral larva migrans (VLM) is a syndrome observed in human infection with helminth larval eggs such as the Toxocara spp. that usually infects dogs and cats. Among the risk factors involved in the occurrence of VLM, particularly important is the size of these animal populations. Sorocaba is a city with a dog population twice as large as that recommended by the World Health Organization. This fact has led to a survey of the presence of Toxocara spp. eggs in public square soils of this city. Thirty squares were selected, fifteen located in the outskirts of the city and fifteen downtown. Soil samples were collected from five distinct sites in the same area. The material was homogenized and drained and 100 g was mixed with a saturated solution of magnesium sulfate and 5% potassium iodine. The floating material was analyzed under the light microscope. Toxocara spp. eggs were found in 16 squares, nine of which were located in the outskirts of the city and seven downtown. It was concluded that Sorocaba squares present a high rate of contamination with Toxocara spp. eggs. The squares in the outskirts of the city presented a higher occurrence of these eggs in comparison with those downtown, although the difference was not statistically significant (p > 0.05).

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