Tuberculosis illustration (IMAGE) PLOS Caption Schematic illustration of a hypothetical model to explain the high and low involvement of the P2X7R during severe and mild TB. Credit Eduardo P. Amaral and colleagues, CC-BY Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.