Table 4 Overall percentage mortalities for permethrin by species and strain based on the use of the standard WHO bioassays at the discriminating (DC), 5× and 10× concentrations. The sample sizes (n) and associated numbers of replicates are given in parentheses. Resistance intensity for each strain is classified as low, moderate or high based on revised criteria
Species | Strain | Overall % mortality (n; no. replicates) | Resistance intensity | ||
|---|---|---|---|---|---|
DC | 5× DC | 10× DC | |||
An. funestus | FUMOZ BASE | 14.71 (102; 4) | 98.92 (93; 4) | 100 (100; 4) | low |
FUMOZ-R | 6 (100; 4) | 60 (100; 4) | 100 (100; 4) | moderate | |
ZAMFa | – | 76 (17; 1) | 100 (17; 1) | moderate | |
An. arabiensis | SENN DDT | 30 (100; 4) | 89.04 (146; 6) | 100 (104; 4) | moderate |
MBN DDT | 67.33 (101; 4) | 86 (100; 4) | 100 (100; 4) | moderate | |
KZN | 72 (74; 3) | 82.43 (74; 3) | 100 (49; 2) | moderate | |
An. gambiae | TONGS | 69.9 (103; 4) | 87 (100; 4) | 100 (100; 4) | moderate |