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Billboard mimics human sweat to entrap Zika-carrying mosquitoes
A couple of ad agencies in Brazil installed two special billboards in Rio de Janeiro, which don't endorse any kind of good or service. Instead, these billboards were designed to lure and kill Zika-carrying mosquitoes. They attract any Aedes aegypti up to 2.5 miles away by emitting a solution containing lactic acid and carbon dioxide that mimic human sweat and breath, respectively. Once the mosquitoes flock to the billboards, they get sucked inside the glass panel, where they're trapped until they die.
