Ghana
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Village Hut Trial has been conducted in Ghana to evaluate VECTRON™ T500 residual efficacy applied on both concrete and mud hut against pyrethroid susceptible Anopheles gambiae s.s. and resistant wild An. gambiae s.l. It provided residual efficacy above 80% at the 168-hour mark during each monthly observation throughout the 12-month duration. Although the mud surfaces collapsed after 8 months due to heavy rainfall, efficacy was maintained throughout the testing period.
72-hour and 7days mosquito mortality tested in 30 min WHO cone bioassays in village huts
| An. gambiae s.s. KISUMU | Susceptible |
|---|
| Wild An. gambiae s.l. DODOWA | High resistant for pyrethroids with kdr mutation |
|---|
*) Testing on wild mosquitoes was not conducted in the 7th, 9th, and 10th months due to insufficient numbers
Noguchi Memorial Institute for Medical Research
| Study Type | Village Hut Trial |
|---|---|
| Location | Shai-Osudoku district |
| Trial Year | 2021-2022 |
| Species | An. gambiae s.s. KISUMU, Wild An. gambiae s.l. DODOWA |
| Substrate | Concrete, Mud |
| Trial Institute (+ Researcher) | Noguchi Memorial Institute for Medical Research |
| Link to publication | |
| Study Condition/Method | 72-168 hour mosquito mortality tested in 30 min WHO cone bioassays in experimental huts |
| Study Status | Finished |
| Observation | Village Hut Trial has been conducted in Ghana to evaluate VECTRON T500 residual efficacy applied on both concrete and mud hut against pyrethroid susceptible Anopheles gambiae s.s. and resistant wild An. gambiae s.l. It provided residual efficacy (>80%) through six months on cement and mud substrates. This trial continued until 12 months after spraying. |
| Explanation of Species | Susceptible, High resistant for pyrethroids with kdr mutation |