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Table 2 Frequency of sibling species of the An. gambiae (s.l.) complex in IRS and control areas

From: Efficacy of Actellic 300 CS-based indoor residual spraying on key entomological indicators of malaria transmission in Alibori and Donga, two regions of northern Benin

Period

No. of analysed samples in IRS areas

Alibori (IRS Area 1)

Donga (IRS Area 2)

Total (IRS Areas)

Bembereke (Control area)

An. gambiae

An. coluzzii

An. arabiensis

An. gambiae

An. coluzzii

An. arabiensis

An. gambiae

An. coluzzii

An. arabiensis

An. gambiae

An. coluzzii

An. arabiensis

Before IRS (May 2016–October 2016)

980

170

271

0

387

152

0

557

423

0

–

–

–

After IRS (June 2017–November 2018)

1794

466

176

17

520

147

5

986

323

22

277

181

5

Proportion (%)

–

70.71

26.70

2.57

77.38

21.87

0.74

74.07

24.26

1.65

59.82

39.09

1.07

Total (Before + after IRS)

2774

636

447

17

907

299

5

1543

746

22

277

181

5

Proportion (%)

–

57.81

40.63

1.54

74.89

24.69

0.41

66.76

32.28

0.95

59.82

39.09

1.07