Malaria researchers in Benin say they may have found a replacement for DDT in areas where mosquitoes are resistant to common insecticides.
Indoor residual spraying (IRS) of insecticides is a major part of malaria control. But worries over toxicity and environmental persistence have led to calls for DDT to be phased out, and mosquitoes are growing resistant to widely used pyrethroid insecticides. Alternatives are expensive and short-lived.
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