About 700,000 Americans have had their DNA sequenced, in full or in part, and the number is rising rapidly as costs plummet — to $1,000 or less for a full genome, down from more than $1 million less than a decade ago. But many people are avoiding the tests because of a major omission in the 2008 federal law that bars employers and health insurers from seeking the results of genetic testing. Research by Robert C. Green, associate professor of medicine at Brigham and Women’s Hospital, and Steven M. Hersch, professor of neurology at Massachusetts General Hospital, is cited.
