> The sporozoites must be harvested from mosquito salivary glands and then stored at extremely low temperatures, complicating their distribution in resource-poo

> The sporozoites must be harvested from mosquito salivary glands and then stored at extremely low temperatures, complicating their distribution in resource-poor areas. No vaccine has ever been mass-produced using mosquitoes before. Alonso remembers someone asking him about the possibility years ago: “It is a crazy idea,” he replied at the time. Crazy indeed, it’s amazing the things people think up.