Parasitological characteristics at three-monthly cross-sectional surveys.

aIn microscopy positive children. Anti-malarial treatment was given to clear all asymptomatic parasiteamias just after survey 2.在显微镜检测呈阳性的儿童中。 在第二次调查结束后，即刻为所有无症状寄生虫血症（parasitemia）患儿施以抗疟治疗以清除体内寄生虫。