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    +8.30 (+0.45%)
     
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  • EUR/USD

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  • 10-Yr Bond

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    -0.0050 (-0.46%)
     
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    1.3655
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The Coronavirus Is Mutating. Here’s What We Know

As new coronavirus variants sweep across the world, scientists are racing to understand how dangerous they could be. WSJ explains. Illustration: Alex Kuzoian/WSJ