Every year an influenza epidemic sweeps across the world, leaving hundreds of millions sniffling and coughing in its wake. Although it kills a number of people every year, there are far worse and far deadlier viruses around. The last Ebola outbreak killed thousands, and it could have been a whole lot worse. In our globalized world, viruses can spread farther and faster than ever before.

But are viruses all bad? If they can do so much harm to us, maybe they can also keep other dangers in check?

In these blinks, you’ll learn

  • why the Romans rubbed their faces with mice;
  • how viruses save lives; and
  • why Ebola is so hard to eradicate.