A U.S. trial to test genetically modified mosquitoes designed to prevent the transmission of diseases like Zika and dengue could be stalled after residents in one Florida county cast conflicting votes on a referendum to allow the release of the insects.
In the island city of Key Haven, where the trial would take place, 65 percent of voters shot down a ballot measure on Tuesday that would have sanctioned the trial, while nearly 58 percent of residents of Monroe County, of which Key Haven is a part, supported the trial.
