Key Haven, a Florida neighborhood about a mile east of Key West, is where a test of Oxitec's genetically engineered mosquitoes might take place later this year. Some neighbors have strongly dissented — at public meetings and via yard signs. Nancy Klingener/WLRN hide caption

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Florida Keys Weigh Options For Battling Mosquitoes And Zika
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Don't bite me: The female of a mosquito called Aedes aegypti can transmit yellow fever, dengue fever and chikungunya. David Scharf/Science Source hide caption

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Chikungunya, A Mosquito-Borne Virus, Might Be Scarier Than We Thought
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A couple of male, genetically modified Aedes aegypti mosquitoes take flight. Dr Derric Nimmo/Oxitec hide caption

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Florida Health Officials Hope To Test GMO Mosquitoes This Spring
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A woman protects her child's face in Managua, Nicaragua, as health workers fumigate for mosquitoes that carry chikungunya. The virus started spreading through Nicaragua and Mexico in the fall. Esteban Felix/AP hide caption

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Painful Virus Sweeps Central America, Gains A Toehold In U.S.
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Marqui Ducarme is aided by his wife after catching chikungunya at his home in Port-au-Prince, May 23. The virus swept through Haiti this spring, infecting more than 40,000 people. Marie Arago/Reuters/Landov hide caption

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Sick with chikungunya, Karla Sepulveda, 5, waits in a public hospital with her grandmother in Boca Chica, Dominican Republic, on May 15. The Caribbean nation has reported more than 100,000 cases this year. Ezequiel Abiu Lopez/AP hide caption

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Chikun-What? A New Mosquito-Borne Virus Lands In The U.S.
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Sun, shopping and chikungunya? A nasty virus has sickened 10 people on the island of St. Martin in the past few months. Balalaika/iStockphoto hide caption

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The chikunguyna virus was discovered in 1955 by two scientists in Tanzania. EMDataBank using UCSF Chimera hide caption

toggle caption EMDataBank using UCSF Chimera