The purpose of this study is to evaluate the use of a urine test strip in diagnose schistosoma mansoni in areas of Kenya where the rate of infections are low.

The hypothesis is that the urine strip test is a superior tool to the conventional parasitological tools used to diagnose schistosomiasis mansoni infections in area where there is low transmission

The study will compare the use of the urine test strip with the conventional method used and with a "golden standard" methode, in an area of Kenya where the infection transmission is low. Furthermore will the urine test strip be evaluatied in its ability to monitor the intensity of infections in school children before and after they are been treated for the infections.

A total of 1100 school children in the age between 10 and 18 years will be included in the study. Children have to submitt a stool and a urine sample on three consecutive days. Children who are found to be infected with the schistosomiasis parasite will be offered treatment.

Inclusion Criteria:

• Children in the age between 10 and 18 years

Exclusion Criteria:

• Children younger then 10 years of age and children whos parent/guardians did not give informed consents for their participation in the study