Mosquitoes engineered to zap ability to carry malaria

Efficacy test of gene drive shows it works better in males than females

Anopheles stephensi mosquito

BLOCKING MALARIA  Anopheles stephensi (pictured) is responsible for about 12 percent of malaria cases in India. Researchers have now engineered these mosquitoes to spread malaria resistance instead of disease.

Jim Gathany/CDC

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