FIRST AIRED: May 26, 2016

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Transcript

00:00:00
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MUSIC]
00:00:04
The latest challenge we're dealing with is Zika.>> > This is unprecedented and tragic. It has been more than 50 years since we've identified any pathogen that can cause a birth defect. And we have never before identified a situation where a mosquito bite could result in an infection that causes a devastating birth defect.
00:00:32
It is unprecedented, it is tragic, and it is now proven. Memorial Day weekend heralds the start of mosquito season in the U.S. We have a narrow window of opportunity to scale up effective Zika prevention measures. And that window of opportunity is closing.