Malaria: Infections halved in children in Ivory Coast using new technology Malaria is a leading cause of death for children and is most prevalent in some of the world's poorest countries. A new lure-and-kill style device trial shows potential for a major drop in malaria-spreading mosquitoes. Malaria is a leading cause of death among children worldwide A new type of malaria control has significantly brought down infection rates among children in the Ivory Coast in western Africa, according to new research published in The Lancet. The device, developed by Dutch researchers and trialed over two years in combination with the use of window screens and insecticide-coated bed nets, was found to lower the incidence of malaria by around 40% to 50% in children aged between six months and 10 years old.