Articles for tag: Black Death

5 Lessons from a Flea

By Megan Rawlings The Black Death was caused by bacterium and was initially spread by fleas. Starting in Asia (most likely), it spread to Eurasia and North Africa in the mid-1300s, and eventually the plague killed up to one-quarter of the world’s population in about four years. At least 100 million people died. And to think, it was spread by a pest barely visible to the eye. I will spare you the details, but the symptoms of this virus were devastating, and death usually occurred only weeks, sometimes days, after the first symptoms. It was not uncommon for the ill