hrach gregorian and soner cagaptay.ou very much. >> thank you. >> woodruff: the speed and impact of the ebola epidemic highlighted the need for better ways to quickly predict potential outbreaks. researchers believe data can help in their fight other diseases like malaria. tomorrow is world malaria day, making it a good time to look at the potential. special newshour correspondent spencer michels reports. >> reporter: maps are nothing new, in one form or another they've been around for centuries. these days we use them in our cars, we use them to illustrate the news. now, scientists have found a powerful new way to use maps to attack disease. epidemiologist hugh sturrock is trying to stamp out malaria in parts of africa, and from his campus cubicle at the university of california san francisco, he is trying to make high tech maps of the risk of outbreaks of malaria, maps that will be crucial to effectively fighting the disease, but will be easy to use in the field. >> if we can understand and predict where diseases will