The Economist examines how “the past decade has seen changes in how vaccines are developed, financed and delivered – solving, at least partially, the conundrum of the vaccine market: poor regions have ample demand for vaccines but little ability to pay for them. As a result, immunisation rates in the poor world have soared.” The article looks at how increased competition among manufacturers, especially those in the developing world, and a variety of purchasing schemes are helping to feed a “surge in innovation in the financing and development of vaccines” (6/16).