Over the past 15 years, the number of annual deaths due to malaria has plummeted by about 400,000, according to the World Health Organization. Scientists also estimate that more than 660 million cases of the disease were averted thanks to scaling up of prevention and treatment.
But that progress is in jeopardy. Thanks to decades of using insecticides and drugs to stave off the mosquito-borne disease, malaria has slowly been evolving to get around our offenses. Without any effective vaccine in place, we’re in desperate need of new tools to fight it.