All Things Considered

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Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

This summer, it's not just athletes who are looking to set world records. Scientists are also trying to break a record — for how quickly they can make a vaccine for a new virus.

It's for Zika. And one team is leading the pack.

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