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Table 3 The efficacy of LifeNet, Olyset and Permanet 2.0 against Anopheles gambiae collected from Akron determined by tunnel test

From: Laboratory and field evaluation of the impact of washings on the effectiveness of LifeNet®, Olyset® and PermaNet® 2.0 in two areas, where there is a high level of resistance of Anopheles gambiae to pyrethroids, Benin, West Africa

  

Nb tested

Penetrating rate

95% CI

Blood-feeding rate

95% CI

% immediate mortality

% overall mortality

95% CI

 

Untreated LifeNet

49

77.55

[65.87-89.23]

79.59

[68.31-90.88]

0

0

[0–7.27]

1 wash

LifeNet

45

8.89

[0.57-17.20]

2.22

[0.39-11.57]

100

100

[92.13-100]

Olyset

45

4.44

[1.58-10.47]

0

[0–7.87]

64.55

79.74

[68–91.49]

Permanet 2.0

47

14.89

[4.72-25.07]

0

[0–7.56]

80.60

92.73

[85.30-100.15]

10 washes

LifeNet

47

0

[0.00-0.00]

0

[0–7.56]

68.48

78.18

[66.37-89.99]

Olyset

49

10.2

[1.73-18.68]

4.08

[1.13-13.71]

48.84

58.14

[44.33-71.95]

Permanet 2.0

48

16.67

[6.12-27.21]

4.17

[1.15-13.98]

66.76

78.63

[67.04-90.23]

20 washes

LifeNet

48

50

[35.85-64.15]

6.25

[2.06-16.22]

97.63

97.63

[93.32-101.93]

Olyset

27

29.63

[12.41-46.85]

0

[0–12.46]

87.34

91.56

[81.07-102.05]

Permanet 2.0

42

35.71

[21.22-50.21]

28.57

[14.91-42.23]

53.88

59.30

[44.44-74.16]

30 washes

LifeNet

51

23.53

[11.89-35.17]

1.96

[0.84 - 7.77]

91.06

95.53

[89.86-101.20]

Olyset

43

11.63

[2.05-21.21]

2.33

[0.41-12.06]

33.75

44.35

[29.50-59.20]

Permanet 2.0

49

57.14

[43.29-71.00]

36.73

[23.24-50.23]

32.56

41.86

[28.05-55.67]

40 washes

LifeNet

57

28.07

[16.40-39.74]

12.28

[3.76-20.80]

88

94

[87.84-100.17]

Olyset

50

12

[2.99-21.01]

0

[0–7.13]

70.37

84.05

[73.90-94.20]

Permanet 2.0

55

63.64

[50.92-76.35]

89.09

[80.85-97.33]

0

0.55

[0.32-9.61]

  1. Parameters were calculated after 24 hours’ observation.
  2. 95% CI calculated indicates the level of difference between each net.
  3. Adult female aged from five to eight days were used.