Ebola today and something else tomorrow after it mutates. The problem of over crowded areas and a squalid lifestyle insures that other diseases will pop up.
Somehow they need to educate the people to make anything long term work. How long has this been going on? Why has western civilization gone forward and these areas seem trapped in the past? Other warm places in the Orient have evolved beyond these problems even where crowding is worse like in Japan and Taiwan.
Colonialism?