A review of selective indoor residual spraying for malaria control.

Background: Indoor residual spraying (IRS) is one of the most effective malaria control tools. However, its application has become limited to specific contexts due to the increased costs of IRS products and implementation programmes. Selective spraying-selective spray targeted to particular areas/surfaces of dwellings-has been proposed to maintain the malaria control and resistance-management benefits of IRS while decreasing the costs of the intervention.