Across several continents, infecting mosquitoes with bacteria results in dramatic drops in dengue illness, trials show

Indonesia saw a 76% drop in dengue infections in the part of Indonesia where the mosquitoes were released. In Brazil, treated neighborhoods in Rio de Janeiro saw rates of dengue infections fall by 70%, and infections with chikungunya was 75% lower. North Queensland, Australia, hasn’t had a dengue in five years, and there has been a 96% reduction in locally acquired dengue infections.