Once poised to defeat infectious disease, vaccines beat a long retreat. Now they’re back, and gaining new ground.
The best protection against bioterror could be an enhanced immune system. But human biology might pose a problem.
They were hooked from the start, four pioneers whose work changed the course of a modern plague—and they’re not done yet.
Sugar-free and engineered for tolerance, hogs may one day fill a need for transplant organs.
The avian virus incubating in Asia is remarkably virulent. But nature itself may prevent a human pandemic.
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