 All children providing stool samples will be randomized across two treatment arms. Fourteen days after treatment a second fecal sample will be collected from the children to determine again FEC. Subjects who are unable to provide a stool sample at follow-up, or who are experiencing a severe concurrent medical condition or have diarrhea at time of the first sampling, will be excluded from the study. At follow-up all students will receive a single oral dose ALB tablet that was donated by GSK through WHO Zentel. 