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Scientists in Florida will release 750 million genetically modified mosquitoes into the
. The aim is to reduce the
of existing mosquitoes that have
like Zika virus,
fever and dengue fever. The plan is to release the mosquitoes next year in the Florida Keys. This is a long
of tropical islands stretching 170km south of the southern
of Florida. The modified mosquitoes are all
. They carry a
that will kill off any female offspring before they reach biting
. It is only female mosquitoes that feed on blood and bite humans. Males only feed on nectar from flowers. Over time, scientists hope the disease-carrying population of mosquitoes in the
will fall.
