Desk reviews revealed a decline in positive malaria cases from 87,051 to 37,075 (-43%, C.I 42.26, 42.92). A total of 525 cases were line-listed. Form three students contributed an attack rate of 53% (C.I 48.86, 57.39). Dormitories attack rates: DormI 37% (C.I 25.79, 49.59), DormII  25% (C.I 17.87, 33.32), DormIII  24% (18, 30.58). The form three streams’ attack rates: South 63% (C.I 46.86, 76.39) West 61% (C.I 45.53, 74.92) East 59% (C.I 46.48, 71.27) North 58% (C.I 44.89, 70.64). The commonest symptoms were headache 77% (C.I 70.19, 82.61), fever 55% (C.I 46.78, 63.91), and diarrhea 53% (44.4, 62). The water samples analysis report from KACWASCO revealed E. coli contamination.