Soil transmitted helminthiasis in Kathmandu, Nepal.
Shrestha, Arina; Rai, Shiba Kumar; Basnyat, Sheetal Raj; Rai, Chandra Kala; Shakya, Bikash.
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| IMSEAR | ID: sea-46894
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 smear techniques. The contamination rate of soil with parasitic eggs and larvae was found to be 28.5% (57/ 200). The overall parasitic infection rates in school children and patients were 42.5% and 2.8%, respectively. Four types of parasites were detected from soil samples, of which Ascaris was the most common. Trichuris was most common among school children whereas Ascaris in patients. Females in both study groups had higher prevalence compared with male counterparts with significantly low rate in health care centre visiting patients (p < 0.05).
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