Years of anti-mosquito efforts have brought dengue infection levels in Singapore to the lowest in recent history. Experts are optimistic but cautioned about popping the champagne too early given perennial issues and emerging risks.  Close to a decade ago, Singapore embarked on a project that sounded more like the logline of a science-fiction movie than a national public health plan. To battle the onslaught of bloodthirsty female Aedes aegypti mosquitoes, that appeared likely to take the annual