Argentina s National Council for Scientific and Technical Research (Conicet) has identified in the Buenos Aires Metropolitan Area (AMBA) and in the country s northwestern provinces genetic mutations in the Aedes aegypti mosquito (carrier of the dengue virus) that turned them resistant to normally lethal doses of pesticides, the national news agency Telam reported amid a dengue outbreak, which has resulted in 129,150 cases and 65 deaths over the past 12 months.