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Table 3 Entomological data from light trap collections in 2009 on Bioko Island, Equatorial Guinea

From: Malaria transmission after five years of vector control on Bioko Island, Equatorial Guinea

     

An. gambiae s.s.

An. melas

Site

No. collected(%)

No. collection events

Total no. trap nights/site

Density

Proportion

L1014F

Pf Sporozoite rate

Proportion

L1014F

Pf Sporozoite rate

Mongola

1754 (43.0)

22

134

14.4 (±8.2)

99.7 (±0.6)

50.6 (±3.7)

1.4 (±1.3)

0.3 (±0.6)

0

0

Biabia

470 (11.5)

17

90

5.5 (±3.4)

99.0 (±1.1)

43.2 (±4.0)

0.7 (±0.9)

1.0 (±1.1)

0

33.3 (±53.3)

Cacahual

121 (3.0)

17

89

1.4 (±1.1)

87.3 (±7.7)

30.8 (±7.9)

8.1 (±6.8)

12.7 (±7.7)

0

0

Basacato del Oeste

0 (0.0)

14

64

0

-

-

-

-

-

-

Arena Blanca

1408 (34.5)

21

111

13.5 (±8.2)

11.4 (±2.6)

43.1 (±8.5)

1.5 (±3.0)

88.6 (±2.6)

0

1.0 (±0.9)

Riaba

285 (7.0)

21

125

2.4 (±1.1)

18.6 (±8.4)

22.2 (±13.6)

0

81.4 (±8.4)

0

4.3 (±4.7)

Bilelipa

1 (0.02)

16

85

0.01 (±0.02)

0

0

0

100

0

0

Bakake Grande

9 (0.2)

15

80

0.1 (±0.2)

100

42.9 (±25.9)

0

0

0

0

Semu

24 (0.6)

16

80

0.3 (±0.2)

100

87.5 (±11.5)

6.3 (±11.9)

0

0

0

Santa Maria

11 (0.3)

16

80

0.1 (±0.1)

100

66.7 (±26.7)

16.7 (±29.8)

0

0

0

TOTAL / Average

4083 (100.0)

175

938

4.7 (±1.6)

58.0 (±2.6)

46.0 (±3.4)

1.8 (±0.9)

62.0 (±2.6)

0

1.7 (±0.6)

  1. Total number, density per light-trap night, proportion of An. gambiae s.s. and An. melas collected in 10 sites, frequency of knockdown resistance mutation L1014F (kdr-west) (%), and Plasmodium falciparum (Pf) sporozoite rates (%) found in each species (95% confidence intervals in parentheses).