The word is out

Clinical Lab Products (CLP) are running the CDC story;

New Guidelines Prefer Blood Tests to Diagnose Tuberculosis Infection in Certain Populations

....In these landmark guidelines, CDC advises that Interferon Gamma Release Assay (IGRA) blood tests are now preferred over the 100+-year-old tuberculin skin test (TST) for diagnosing TB infection in certain populations, including people who typically do not return for the necessary reading of TST results, and those who have received Bacille Calmette-Guerin (BCG) as a vaccine or for cancer therapy