Florida releases millions of genetically modified mosquitoes from Oxitec in the Florida Keys to try to reduce dengue and Zika by up to 95%, in a real-world experiment that divides residents and ushers in a new era of ecosystem editing.

Florida releases millions of genetically modified mosquitoes from Oxitec in the Florida Keys to try to reduce dengue and Zika by up to 95%, in a real-world experiment that divides residents and ushers in a new era of ecosystem editing.

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Carla Teles,  Click Petróleo e Gás,  2026.

In a quiet Florida neighborhood, things began with something that seemed mundane. Gray boxes started appearing in backyards and along the edges of mangrove swamps, accompanied by a simple instruction: fill with water and leave. Nobody saw anything special about them, just discreet containers scattered around the neighborhood. What almost nobody realized was that those boxes were capsules for a global experiment: from inside them would emerge millions of mosquitoes. Created in a laboratory, carrying a genetic code designed to attack their own species. In the following months, these boxes became the starting point for waves of millions of mosquitoes A laboratory experiment over the Florida Keys. For some residents, it looked like the beginning of an apocalyptic movie. For others, it was a desperate gamble to contain dengue and Zika outbreaks that had been approaching year after year. And behind it all was Oxitec, a British biotechnology company that transformed a common mosquito into a small flying genetic saboteur.