New blood test can predict TB up to two years in advance

A new blood test has been found to more accurately predict the development of tuberculosis up to two years before its onset in people living with someone with active TB, according to research published online in the American Journal of Respiratory and Critical Care Medicine, an American Thoracic Society journal. Those living with someone with active TB are at highest risk for developing the disease, yet only about 5-20 percent of people infected with tuberculosis actually develop TB. A blood test that predicts the development of TB without putting large numbers of lower-risk people through unnecessary preventative treatment is not currently available. In “Four-gene Pan-African Blood Signature Predicts Progression to Tuberculosis,” researchers from an international research consortium report that they developed and validated a blood test that measures the expression levels of four genes that can more accurately predict the development […]