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Table 4 Distribution of the Kdr genotype within An. gambiae M and S forms in Douala and Yaoundé

From: Anopheles gambiae distribution and insecticide resistance in the cities of Douala and Yaoundé (Cameroon): influence of urban agriculture and pollution

 

An. gambiae molecular forms

 

Genotypes

     

Kdrw/Kdrw

Kdrw/KdrE

Kdrw/S

S/S

Total

F(Kdr)

P(HW)

Douala

M form

228

1

170

62

460

0.68

P = 0.002

 

S form

-

-

1

-

1

  

Yaoundé

M form

79

0

124

115

318

0.44

P = 0.0003

 

S form

-

-

2

-

2

  

Total

 

307

1

296

177

781

  
  1. S, wild type; Kdrw, L1014F substitution « West Africa"; KdrE, L1014S substitution "East Africa", Kdrw/S, heterozygote; P(HW), goodness of fit to Hardy Weinberg Equilibrium (significant if P < 0.05).