Table 3.

Populations tested in gaining and sustaining control of schistosomiasis studies, and microscopy performed, by year of the study

Intended population tested per village	Microscopy performed	Year 1	Years 2–4	Year 5
100 children aged 9–12 years	One mid-day urine specimen subjected to two filtrations; or three stool specimens subjected to duplicate Kato-Katz thick smears	Gaining and sustaining	Gaining and sustaining	Gaining and sustaining
100 (or as many as possible) children aged 5–8 years	One mid-day urine specimen subjected to two filtrations; or one stool specimen subjected to duplicate Kato-Katz thick smears	Gaining and sustaining		Gaining and sustaining
Adults	One mid-day urine specimen subjected to two filtrations; or one stool specimen subjected to duplicate Kato-Katz thick smears	Gaining		Gaining