PIRACABA, BRAZIL - FEBRUARY 11 :A Biologist releases genetically modified mosquitoes in the city on February 11, 2016 in Piracicaba, Brazil. Technicians from the Oxitec laboratory located in Campinas, 100km from Sao Paulo, are releasing genetically modified mosquitoes Aedes Egypti to combat Zika virus. The laboratory is acting in Piracicaba who had a dengue outbreak last summer with 132 cases and after treatment showed only two cases this summer .The Lab will release 250,000 genetically modified mosquitoes in two neighborhoods with a large concentration of incident cases of egypti aedes mosquito, the modified mosquitoes compete with wild mosquitoes and replace them with non-Zika transmitting mosquitoes . (Photos by Victor Moriyama/Getty Images)
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