New Test Could Reveal Every Virus That's Ever Infected You

sciencehabit writes: A new blood test can find almost every virus you ever caught—in a single drop of blood. Called VirScan, the test surveys the antibodies present in the bloodstream to reveal a history of the viruses you've been infected with throughout your life. Besides diagnosing current illnesses, the new test could be an important tool in developing vaccines and studying links between viruses and chronic disease.