Medical science has come a long way over the years. We’ve found treatments for the Black Death; we created a vaccine for chicken pox; and we’ve done away with diseases like smallpox and rinderpest worldwide. But there are still some diseases science can't fully explain.
These mystery diseases range from epidemics of dancing dating back to the 1500s, to illnesses that once attacked cows and now target humans. Though some may seem almost comical, most are horrifying, incurable, and dangerous. The fact is, we may never know the causes of a few of these illnesses, but research is ongoing. And for many of these, we can only hope the answers come soon.
Of course, what we do know for now is downright fascinating. So learn more about some of the strange diseases science doesn't understand... yet.