Cancer is an enormous, and growing, global public-health problem. A disease formerly considered more pervasive in affluent countries now places its heaviest burden on poor and disadvantaged populations. Of the 7.6 million cancer deaths every year, 4.8 million occur in the developing world.
If no action is taken, the number of cancer deaths in the developing world is forecast to grow to 5.9 million in 2015 and 9.1 million in 2030. While cancer deaths in wealthy countries are expected to increase less dramatically, they are nonetheless predicted to rise by a harrowing 40 percent over the next 20 years.