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Using less than a drop of blood, a new test can reveal nearly every virus a person has ever been exposed to, scientists reported on Thursday.
The test, which is still experimental, can be performed for as little as $25 and could become an important research tool for tracking patterns of disease in various populations, helping scientists compare the old and the young, or people in different parts of the world.
It could also be used to try to find out whether viruses, or the body’s immune response to them, contribute to chronic diseases and cancer, the researchers said.
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Stephen J. Elledge, a professor of genetics at Harvard Medical School and Brigham and Women’s Hospital. A blood test he helped develop could become an important tool for tracking disease patterns.Credit Bryce Vickmark for The New York Times
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