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EPA approved plan to release "weaponized" mosquitoes to fight diseases

Lab-grown mosquitoes are cleared to be released in 20 states and Washington, D.C. The modified mosquitoes will target disease-carrying insects to help fight the spread of illnesses including Zika and Yellow Fever. The EPA approved the plan from a biotech startup in Kentucky. Entomologist Brian Lovett joins CBSN to explain how it works.
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