This feature article, written for non-specialist readers, looks at the prospects of controlling malaria by releasing genetically modified mosquitoes into the environment. The rationale is to render mosquitoes incapable of transmitting the malaria parasite, but it will be many years before such technology is developed and shown to be environmentally safe. Issues to be resolved before such mosquitoes are released include the possibility that the genetic modification could disappear in subsequent mosquito generations.


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