[Helminth eggs and larvae in restrooms at municipal nursery schools in Sorocaba, SP, Brazil, and their frequency in children feces]. / Ovos e larvas de helmintos nos sanitários de pré-escolas municipais de Sorocaba, SP e suas freqüências nas fezes das crianças.

The purpose of this research was to establish a relationship between the presence of helminth eggs in the water closet elements and the frequency of these eggs in the feces of their users. 1050 kindergarten children's feces were examined by the spontaneous sedimentation method in three samples of feces, which were positive in 162 children presenting 184 eggs or helmints larvs. From the 465 water closet elements, constituted of : toilet seat, internal and external door knobs, latch, faucet handle and discharge valve, of 12 Infant Educational Centers of Sorocaba, examined by sticking some transparent adhesive tape on microscopy slides, were found 18 eggs of Ascaris lumbricoides; 1 of Enterobius vermicularis and 4 larvs of nemathoids partially deformed were found in 23 infected elements. There wasn't significance relationship between the elements of water closets and user's feces contamination.