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The CDC recommends booster shots for healthcare workers and other at-risk groups
Sep 24, 2021 5:04 PM
Featured in faqs
Sep 24, 2021
3 wild ideas for how to stop a tornado
To stop a tornado, you first have to know how it's formed.
Aug 04, 2021
How old is the universe? Our answer keeps getting better.
After thousands of years, we’re getting more consistent age estimates.
Jul 19, 2021
What makes gluten-free oats different from regular ones?
It’s a surprisingly complicated issue.
Jul 6, 2021
How to make sure your leech bite doesn’t kill you
You don’t know where that worm’s been … or where it will end up.
May 12, 2021
Declawing cats is harmful. Do this instead.
Research shows it’s bad for your cat—and for you.
May 4, 2021
What we know—and don’t know—about Brood X cicadas
They appear like clockwork, but they're still kind of mysterious.
