Table 6. Distribution of Entamoeba positives in each grade for school B.

Educational stage	Grade	No. of students	No. of positives (%)
			E. histolytica	E. dispar	E. coli
Kindergarten	1	2	0 (0)	0 (0)	1 (50.0)
Primary school	1	14	2 (14.3)	3 (21.4)	13 (92.9)
	2	5	0 (0)	2 (40.0)	2 (40.0)
	3	14	1 (7.1)	3 (21.4)	11 (78.6)
	4	2	0 (0)	0 (0)	2 (100.0)
	5	3	0 (0)	0 (0)	2 (66.7)
	6	4	0 (0)	1 (25.0)	1 (25.0)
Total		44	3 (6.8)	9 (20.5)	32 (72.7)