Resistance: A problem without an easy solution.

Insecticide resistance can no longer be ignored if we are to retain our ability to control many insect borne diseases. We need new public health insecticides, but these must be embedded in real resistance management strategies. Calls for Integrated Vector Management will continue to fail unless the evidence for the use of different interventions is dramatically improved. The donor community will also need to be prepared for the increased cost of effective long-term vector control. This will not happen without advocacy based on solid economic evaluation, which needs to happen before the opportunity to manage resistance becomes impossible.