| [detection of transmissible forms of enteroparasites in water and vegetables consumed at schools in sorocaba, são paulo state, brazil]. | water and raw vegetables consumed in ten nursery schools were evaluated for the presence of transmissible forms of enteroparasites. the water was submitted to filtration through membranes. the washed membrane water was submitted to the faust method. the in natura and washed vegetables were washed and the water analyzed by the sedimentation method. contamination was not detected in one school; in two schools, all the materials were contaminated; in four schools, two items were contaminated and in ... | 2001 | 11600915 |
| morphological and molecular characterization of strongyloides ophidiae (nematoda, strongyloididae). | the aim of the present study is to report morphological data from parasitic female, rhabditoid and filarioid larvae, free-living female worms and eggs of strongyloides ophidiae (nematoda, strongyloididae). in addition, a molecular dna analysis was carried out using a pool of eight s. ophidiae parasitic females. samples were obtained from the small intestine of oxyrhopus guibei (serpentes, colubridae) collected in the municipality of lençóis paulista, state of são paulo, brazil. dna amplification ... | 2010 | 19712537 |
| frequency of blastocystis hominis and other intestinal parasites in stool samples examined at the parasitology laboratory of the school of pharmaceutical sciences at the são paulo state university, araraquara. | blastocystis homins is a protozoan that causes an intestinal infection known as human blastocystosis. this infection is diagnosed by means of parasitological examination of stools and by permanent staining techniques. the present study was developed to evaluate the frequency of blastocystis hominis infection among inhabitants of the araraquara region, state of são paulo, and to compare different methods for investigating this protozoan in feces samples. evaluations on 503 stool samples were perf ... | 2008 | 19142433 |
| control of parasitic infections among school children in the peri-urban area of botucatu, são paulo, brazil. | the prevalence of intestinal parasitosis was investigated in a primary school located in rubião júnior, a peri-urban district of botucatu, são paulo state, brazil, in order to assess the effect of treatment and practical measures of prophylaxis in the control of parasitic infections among 7-to-18-year-old school children of a low socio-economic status. the first series of parasitological examinations included 219 school children, of which 123 (56.1%) were found to be infected with one or more pa ... | 1996 | 8885671 |
| strongyloidiasis in campinas city region (brazil). parasitological and serological data. | a retrospective study of laboratory records in a 400-bed university hospital in campinas city, sp (southeastern brazil) suggests that infection by strongyloides stercoralis is widespread in the region. a prevalence of 10.81% was found in 37,621 stool specimens examined in a two-year period. parasite-specific igg antibodies were measured by elisa in sera from 90 patients with strongyloidiasis. the elisa detected antibody in 76 (84.44%) patients, indicating that serodiagnostic tests may be helpful ... | 1993 | 8236475 |
| prevalence of intestinal parasitic infection in five farms in holambra, são paulo, brazil. | a parasitological survey was carried out on 222 inhabitants of five farms in holambra, located 30 km north of campinas, são paulo, brazil, on october 1992. approximately 70% of the inhabitants were found to be infected with at least one species of intestinal parasite. the positive rates of 6 helminths and 7 protozoan species detected are as follows: 5.4% ascaris lumbricoides; 8.6% trichuris trichiura; 19.8% necator americanus; 10.4% strongyloides stercoralis; 1.4% enterobius vermicularis; 0.9% h ... | 1995 | 7569635 |
| [occurrence of strongyloides stercoralis in patients with acquired immunodeficiency syndrome (aids)]. | a comparative study on the occurrence of strongyloides stercoralis larvae in 554 patients with aids and in 142 patients suffering from infectious diseases other than aids was conducted during the period from january 1987 to december 1988. the two groups was constituted by male individuals in-patients at emílio ribas hospital--são paulo. faeces samples from 696 patients were submitted to spontaneous sedimentation method and rugai method. the data obtained from the present investigation demonstrat ... | 1992 | 1307407 |