Ebola got most of the attention in 2014. It killed about 8,000 people. Meanwhile, over the same period of time about 3.6 million people died from HIV/AIDS, tuberculosis (TB) and malaria.
The truth is that despite great progress in healthcare, much of the world is still blighted by preventable disease, with the poorest people suffering the most. The good news is that tackling these diseases turns out to be an extraordinary good investment.