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Table 1 Larval bioassays with Bacillus thuringensis israelensis against Aedes aegypti and Ae. albopictus larvae

From: Susceptibility profile and metabolic mechanisms involved in Aedes aegypti and Aedes albopictus resistant to DDT and deltamethrin in the Central African Republic

Strain and site n LC50 (mg/l) (95% CI) LC95 (mg/l) (95% CI) RR50 RR95
Ae. aegypti
 IPB 500 0.06 (0.05–0.08) 0.27 (0.22–0.38) 0.85 1.58
 Sica 1 500 0.07 (0.04–0.09) 0.25 (0.20–0.35) 1.00 1.47
 Lakouanga 500 0.15 (0.12–0.16) 0.30 (0.26–0.42) 1.85 1.57
 Ouango 498 0.06 (0.05–0.09) 0.25 (0.20–0.37) 0.85 1.47
 Ngongonon 3 500 0.08 (0.06–0.10) 0.27 (0.22–0.36) 1.14 1.58
 92 Logements na   
Ae. albopictus
 IPB 500 0.09 (0.06–0.12) 0.21 (0.18–0.23) 1.28 1.23
 Sica 1 500 0.08 (0.05–0.10) 0.27 (0.22–0.37) 1.14 1.58
 Lakouanga 500 0.11 (0.07–0.16) 0.26 (0.21–0.32) 1.57 1.52
 Ouango 500 0.07 (0.05–0.09) 0.23 (0.19–0.30) 1.00 1.35
 Ngongonon 3 500 0.10 (0.07–0.11) 0.2 (0.20–0.27) 1.42 1.17
 92 Logements na   
Reference strain 500 0.07 (0.05–0.08) 0.17 (0.15–0.21)   
  1. Abbreviations: na not available; LC50 and LC95, 50 and 95% lethal concentrations; CI Confidence interval, RR Resistance ratio