Swatdown: the global war on poison-proof mosquitoes


An Anopheles stephensi mosquito feeds on a human. The species is a common malaria carrier, and has grown increasingly resistant to pesticides in some regions. (Photo credit: Wikimedia Commons)

Every year, thousands of children die at the hands of a quiet, unassuming villain: mosquitoes, and the malaria they carry. Efforts to curb the disease have saved millions of lives over the past decade, but experts say an uphill battle may loom on the horizon, as mosquitos across Africa and Asia become increasingly immune to insecticides.

Last year, the World Health Organization (WHO) cited insecticide resistance as a growing threat to malaria control campaigns in Africa, saying “urgent action” is needed to stem the spread. Globally, malaria kills…

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