The future is decidedly not female for California mosquitoes, or at least that's what researchers hope to achieve when they unleash up to 2.4 billion genetically altered males into the West Coast state starting this summer in an attempt to control the booming populations. The Environmental Protection Agency announced last month that biotech firm Oxitec had received approval to expand its existing pilot program in Florida into California's Central Valley, a campaign that would run through 2024 and release a maximum of 2.4 billion over that time span. By expanding the share of male offspring born each season, it would decrease the chances of female biting mosquitoes from spreading deadly diseases like Zika, dengue and yellow fever. Researchers at Oxitec paired a special protein to the male so that when it mates with a biting female, the only viable offspring that results are more non-biting males. The targeted group is the Aedes aegypti mosquito. California has not yet noted an uptick in the diseases the pests are capable of spreading.
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