The U.S. Takes Its First Shot at Zika

Scientific American: Roughly a year after Brazilian doctors and researchers first suspected a link between a spate of alarming birth defects and the Zika virus, a cadre of potential vaccines are now headed for testing in humans. The flurry of action—at breakneck speed compared with most vaccine development—shows how a health emergency and a guaranteed global market can prod this process to move a lot faster than usual, with streamlined approvals and millions of dollars in government support.

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