Skip to main content

Table 3 Results of experimental hut evaluation of the protective efficacy of the transfluthrin treated eave ribbons fitted along the eave-spaces of the huts

From: Eave ribbons treated with the spatial repellent, transfluthrin, can effectively protect against indoor-biting and outdoor-biting malaria mosquitoes

Mosquito species

Nights

Micro-climatic conditions**

Intervention

Indoor mosquito collection

Outdoor mosquito collection

%Pe

Average Temp (°C)

Average %RH

Window Trap

%Pe

Resting Trap

%Pe

Min-double net-Trap

Mean [LCI-UCI] 95%

Mean [LCI-UCI] 95%

Mean [LCI-UCI] 95%

Anopheles gambiae

16

22.9

73.1

Control

13.11 [12.1–14.1]

Ref

0.23 [0.1–0.4]

Ref

7.95 [7.2–8.8]

Ref

16

22.9

73.1

Treatment

0.54 [0.0–1.3]

96%

0.14 [0.0–0.3]

39%

1.26 [1.1–1.4]

84%

Anopheles funestus

16

22.9

73.1

Control

3.6 [3.4–3.8]

Ref

0.47 [0.4–0.5]

Ref

1.0 [0.2–0.7]

Ref

16

22.9

73.1

Treatment

2.1 [2.0–2.2]

42%

0.16 [0.1–0.3]

66%

0.60 [0.3–0.6]

40%

Other Anopheles species##

16

22.9

73.1

Control

0.7 [0.1–0.2]

Ref

0.03 [0.0–0.1]

Ref

3.33 [3.3–3.4]

Ref

16

22.9

73.1

Treatment

0.27 [0.0–0.2]

61%

0.06 [0.0–0.2]

− 10%

1.50 [1.4–1.6]

55%

Culex species

16

22.9

73.1

Control

73.8 [71.5–76.1]

Ref

7.08 [5.7–8.5]

Ref

30.6 [28.9–32.3]

Ref

16

22.9

73.1

Treatment

51.3 [49.3–53.3]

30%

5.73 [4.7–6.8]

19%

19.23 [18.3–20.3]

37%

  1. Assessment of biting risk was conducted outdoors using human-occupied double net traps and indoors using both exit window traps and Prokopack® Aspirator
  2. ** represents the average temperature and relative humidity in the huts which were averaged over the entire duration of the study
  3. ## represent other Anopheles species caught during the study which are Anopheles coustani, Anopheles pharoensis, Anopheles welcommei and Anopheles squamosus