Related article http://www.nytimes.com/2015/06/05/health/single-blood-test-for-all-virus-exposures.html http://www.nytimes.com/2015/06/05/health/single-blood-te

Related article http://www.nytimes.com/2015/06/05/health/single-blood-test-for-all-virus-exposures.html http://www.nytimes.com/2015/06/05/health/single-blood-test-f... your blood antibodies looks like a blockchain for any infectious agents you have been exposed to.