Skip to main content

Advertisement

Table 3 Resistance of adults to deltamethrin, DDT and bendiocarb

From: Insecticide resistance mechanisms associated with different environments in the malaria vector Anopheles gambiae: a case study in Tanzania

Area Pop Deltamethrin DDT Bendiocarb
   KDT50 (95% CI) RR50 (95% CI) % Mort (SE) KDT50 (95% CI) RR50 (95% CI) % Mort (SE) % Mort (SE)
Lab strain KIS 5.7 (5.0-6.2) 1.0 100 (0.0) 24.2 (20.8-27.8) 1.0 100 (0.0) 95 (2.3)
  IFA 12.4 (11.4-13.5) 2.2 (2.1-2.3) 100 (0.0) 15.7 (6.7-24.9) 0.6 (0.3-0.9) 100 (0.0) 95 (1.7)
Urban ILA 19.7 (17.6-21.7) 3.5 (3.5-3.5) 100 (0.0) 34.7 (32.6-36.8) 1.4 (1.3-1.6) 94.5 (2.2) 33 (1.4)
  TEM 22.5 (19.6-25.8) 4.0 (3.9-4.1) 98 (1.2) 52.3 (26.0-32.2 2.2 (1.2-1.2) 98 (1.2) 54 (1.2)
  KIN 10.0 (8.4-11.6) 1.8 (1.7-1.8) 100 (0.0) 27.8 (25.8-30.1) 1.2 (1.1-1.1) 95 (3.0) 20 (4.9)
Non-polluted ZEN 8.0 (5.8-10.1) 1.4 (1.2-1.6) 100 (0.0) 28.6 (26.7-30.6) 1.2 (1.1-1.3) 95 (3.2) 46 (7.0)
  KIL 7.7 (5.8-9.6) 1.4 (1.1-1.5) 100 (0.0) 26.7 (24.7-28.6) 1.1 (1.0-1.2) 96 (2.3) 55 (7.0)
  MUH 8.9 (6.9-10.8) 1.6 (1.4-1.7) 100 (0.0) 26.5 (24.5-28.6) 1.1 (1.0-1.2) 95 (3.5) 63 (6.6)
Agriculture RUN 32.8 (30.6-34.9) 5.8 (5.6-6.1) 86 (4.8) 22.1 (19.3-24.7) 0.9 (0.9-0.9) 100 (0.0) 52 (4.3)
  KIK 32.7 (30.8-34.6) 5.8 (5.5-6.2) 84 (4.6) 22.1 (21.1-23.0) 0.9 (0.8-1.1) 100 (0.0) 54 (7.4)
  KAW 30.2 (28.5-32.0) 5.3 (5.1-5.7) 87 (5.3) 22.9 (21.3-24.3) 0.9 (0.9-1.0) 100 (0.0) 60 (2.8)
  1. KDT50: Knock down time for 50% of individuals (min). RR50: resistance ratio based on KDT50 values. RR50 values with CI95 intervals not overlapping those of both susceptible strains are shown in bold. For bendiocarb, % mortality after 10 min exposure is indicated with populations showing less than 50% mortality in bold. Bioassays were performed on Anopheles gambiae sensu lato adults.