OBJECTIVES To determine 1) the degree of soil contamination by parasites; 2) the prevalence of contaminated samples; 3) the overall number of parasitic forms, by distance between the collection site and the domicile; 4) the mean number of parasite forms per peri-household area; and 5) the variables associated with the total number of parasite forms. METHODS Soil samples were collected in the ...

because of endemic parasitological infectious diseases in iran and contaminated vegetables, as one of the most important ways of contamination, carried out a parasitical study on 263 vegetable samples from 44 farms in the suburbs of tehran city, and also 166 vegetables samples from 20 green grocery markets in the same city. from 263 samples of farms 147 cases (65%) of contamination were recorde...

introduction : direct relationship has been reported between the prevalence of some parasitic diseases and the presence of microorganisms in water. there are possible contamination of water resources, due to the climate changes and increasing the groundwater level. the purpose of this research was to determine the contamination rate of drinking water supplies to parasites in mazandaran province...

A total of 200 soil samples taken from different sites and 1,504 stool samples collected from school children (n=188) and patients (n=1,316) visiting the health care centres in Kathmandu Valley were included in this study. Soil samples were investigated for the presence of parasitic eggs using sucrose flotation technique. Stool samples were examined by formal-ether concentration and direct smea...

introduction: indoor swimming pools are the most important recreational centres. swimming pool water is responsible for the transmission of parasitic diseases. this study was performed to determine the rate of parasitic contamination and some physio- chemical parameters of indoor swimming pools in urmia during 2002. materials and methods: this study was a descriptive-cross sectional one in whic...