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Mortality of permethrin solution on the application on D. caprae lice after multiple hair washing.
| Experimental Formulation. | Number of Lice Survived/Recorded Time (h) | ||||
|---|---|---|---|---|---|
| 0 | 4 | 8 | 16 | 24 | |
| Hair treated with 0.5% permethrin | 10 | 1 ± 1 | 0 | 0 | 0 |
| Hair washed one time after 0.5% permethrin treatment | 10 | 5 ± 1 | 2 ± 1 | 0 | 0 |
| Hair washed two times after 0.5% permethrin treatment | 10 | 8 | 6 ± 1 | 6 ± 1 | 6 ± 1 |
