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The idea of using the body's immune system to fight cancer has been around for a century, but only in the past half a dozen years have dramatic breakthroughs begun rocking the medical world. "That's when the tsunami came," says Drew Pardoll, director of the Bloomberg-Kimmel Institute for Cancer Immunology at Johns Hopkins University, and those advances are spawning hundreds of clinical trials nationwide, plus generating intense interest from patients, physicians and investors. (McGinley, 9/28)

What’s the best way to bring cutting-edge healthcare to the world’s poorest places? It can be tempting to export money and equipment to solve the problem. But when bioengineer Rebecca Richards-Kortum visits hospitals in places such as Malawi and El Salvador, she sees the unintended consequence of that charitable impulse. “Ironically, if you walk down the hall or into the basement of a hospital, there’s always a big room that is just for broken, donated equipment,” she says. (Blakemore, 9/28)