Table 1 S. mansoni prevalence and intensity of infection in the school children before and after treatment

1 704

42.4 (40.0–44.7)

26.8 (24.7–28.9)

17.9 (16.1–19.7)

57.8%

638

33.4 (29.7–37.0)

18.0 (15.0–21.0)

9.7 (7.4–12.0)

71.0%

335

49.3 (43.9–54.6)

39.1 (33.9–44.3)

29.6 (24.7–34.4)

40.0%

731

47.1 (43.4–50.7)

28.7 (25.4–32.0)

19.7 (16.8–22.6)

58.0%

620

77.2 (73.9–80.5)

56.9 (53.0–60.8)

38.5 (34.6–42.3)

50.1%

795

29.9 (26.7–33.1)

12.8 (10.5–15.1)

8.0 (6.2–9.9)

73.2%

289

2.1 (0.4–3.7)

0.7 (0.0–1.7)

1.0 (0.0–2.2)

52.4%

879

41.5 (38.3–44.8)

27.1 (24.1–30.0)

18.3 (15.8–20.9)

55.9%

821

43.2 (39.9–46.6)

26.4 (23.4–29.5)

17.3 (14.7–19.9)

60.0%

1 704

219.6 (191.8–247.4)

73.4 (58.7–88.0)

37.4 (27.4–47.5)

83.0%

-

57.6 (55.3–60.0)

73.2 (71.1–75.3)

82.1 (80.3–83.9)

-

-

16.2 (14.4–17.9)

14.6 (12.9–16.2)

11.5 (10.0–13.0)

-

-

11.1 (9.6–12.6)

7.3 (6.1–8.6)

4.1 (3.2–5.1)

-

-

15.1 (13.4–16.8)

4.9 (3.8–5.9)

2.3 (1.6–3.0)

-

638

105.7 (80.6–130.8)

44.2 (30.7–57.5)

11.6 (6.1–17.1)

89.0%

335

386.8 (300.3–473.3)

165.9 (105.0–226.9)

84.1 (47.7–120.6)

78.3%

731

242.3 (197.2–287.4)

56.4 (41.0–71.8)

38.6 (23.2–54.0)

84.1%

620

522.3 (454.6–590.0)

175.8 (138.6–213.0)

86.6 (63.8–109.3)

83.4%

795

60.2 (45.5–74.8)

20.2 (10.5–29.8)

12.7 (1.2–24.2)

78.9%

289

10.1 (0.0–12.7)

0.3 (0.0–1.0)

0.4 (0.0–1.0)

96.0%

879

233.1 (190.8–275.5)

77.8 (53.4–102.1)

32.8 (23.2–42.4)

85.9%

821

205.9 (170.2–241.6)

68.2 (52.4–84.0)

42.5 (24.4–60.6)

79.4%