Table 1 Resistance status of Anopheles gambiae (s.l.) strains collected at Asokwa submetropolis and Kisumu laboratory strains to the four main classes of insecticides recommended by WHO
From: Insecticide resistance in malaria vectors in Kumasi, Ghana
Insecticide | Strain | N | Dead (n) | Survived (n) | Mortality (%) | Resistance (%) | 95% CI | Susceptibility status |
|---|---|---|---|---|---|---|---|---|
Organophosphates | ||||||||
Malathion (5%) | Asokwa submetropolis | 125 | 123 | 2 | 98 | 2 | 0.96–1.01 | S |
Kisumu | 124 | 124 | 0 | 100 | 0 | – | S | |
Pirimiphos-methyl (0.25%) | Asokwa submetropolis | 107 | 107 | 0 | 100 | 0 | – | S |
Kisumu | 125 | 125 | 0 | 100 | 0 | – | S | |
Carbamates | ||||||||
Propoxur (0.1%) | Asokwa submetropolis | 119 | 67 | 52 | 56 | 44 | 0.47–0.65 | R |
Kisumu | 120 | 119 | 1 | 99 | 1 | 0.98–1.01 | S | |
Bendiocarb (0.1%) | Asokwa submetropolis | 99 | 38 | 61 | 38 | 62 | 0.29–0.48 | R |
Kisumu | 122 | 120 | 2 | 98 | 2 | 0.96–1.01 | S | |
Pyrethoids | ||||||||
Cyfluthrin (0.15%) | Asokwa submetropolis | 109 | 34 | 75 | 31 | 69 | 0.22–0.40 | R |
Kisumu | 125 | 124 | 1 | 99 | 1 | 0.98–1.01 | S | |
Deltamethrin (0.05%) | Asokwa submetropolis | 102 | 48 | 54 | 47 | 53 | R | |
Kisumu | 105 | 105 | 0 | 100 | 0 | – | S | |
Lambda-cyhalothrin (0.05%) | Asokwa submetropolis | 104 | 16 | 88 | 15 | 85 | 0.08–0.22 | R |
Kisumu | 107 | 106 | 1 | 99 | 1 | 0.97–1.01 | S | |
Permethrin (0.75%) | Asokwa submetropolis | 101 | 26 | 75 | 26 | 74 | 0.17–0.34 | R |
Kisumu | 124 | 124 | 0 | 100 | 0 | – | S | |
Organochorides | ||||||||
DDT (4%) | Asokwa submetropolis | 108 | 41 | 67 | 38 | 62 | 0.29–0.47 | R |
Kisumu | 121 | 121 | 0 | 100 | 0 | – | S | |
Dieldrin (4%) | Asokwa submetropolis | 95 | 44 | 51 | 46 | 54 | 0.36–0.56 | R |
Kisumu | 124 | 123 | 1 | 99 | 1 | 0.98–1.01 | S | |