Coronavirus ‘Arrives’ in the US. How Worried Should You Be? (Just a Little.) Even if you do contract the virus, all is not lost. By Chris Roberts
How Flu Changes Within the Human Body May Hint at Future Global Trends New genetic technologies are letting us look at flu evolution right where it starts: within individual people, while they're sick. By Katherine Xue and Jesse Bloom
ATMs Dispense More Than Money: The Dirt and Dope That’s on Your Cash What's on your cash? Studies show our money carries everything from pet DNA and old food to E.coli and traces of cocaine. By Johanna Ohm and Andrew Read