Did a genetically modified-mosquito experiment go wrong?
September 23, 2019 11:29 AM Subscribe
From 2013 to 2015, an English biotech company released millions of genetically modified mosquitoes into neighborhoods in Jacobina, Brazil, in an effort to reduce the number of native disease-carrying mosquitoes. Its strategy: Deploy (nonbiting) male Aedes aegypti mosquitoes bearing a gene that should doom most of their offspring before adulthood. The method has successfully reduced native mosquito populations by at least 85%. Unexpectedly (Live Science), some of the gene-edited mosquitoes passed on their genes to the native insects, fueling concerns that they created a more robust hybrid species (Scientific Reports). The study is now being criticized for making that claim (Science).
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