Halimu Mohamed holds her seven-month-old daughter Hibo in her arms beneath a mosquito net at a hospital in Mogadishu on August 16, 2011. Malaria kills more than 1.2 million people a year, nearly 50 percent more than previously thought, and inflicts a high toll among adults and older children and not just toddlers, a new investigation says on February 3, 2012.