Do you know that one drop of your blood is all medical experts need to learn every virus from which you’ve suffered? That’s a big deal considering that there are literally thousands of possibilities, some of which you may never have known that you had!

Viruses radically affect the body. In fact, they permanently alter the immune system in some cases; and at the very least, leave an imprint that lasts several years. The VirScan test, a new health diagnostic method developed by Howard Hughes Medical Center in Boston, mixes a drop of blood to reveal more than 200 viruses known to infect humans.