ABSTRACT
In this study, 152 students [90 males and 62 females] of primary [5[th] and 6[th] grades, 52 males and 30 females] and preparatory [1[st] and 2[nd] grades, 38 males and 32 females] schoolchildren of different age and sex group inhabited in two endemic villages with Schistosoma mansoni in Taiz Governorate were examination. The highest prevalence and intensity of S. mansoni were-among males at the age group from 10-<12years. A significant relationship was recorded between prevalence and intensity of infection and those who using pond water for human usage. The prevalence was significantly higher among children who received previous praziquantel treatment as well as those who didn't have TV, Radio and/or Video. The results were discussed on the light of certain variables