Lung Lining Cells (IMAGE) Texas Biomedical Research Institute Caption Elderly alveolar lining fluid-exposed Mycobacterium tuberculosis (Mtb) demonstrates increased Mtb-induced immunopathology in the lung. Credit Texas Biomedical Research Institute Usage Restrictions Proper Credit to Texas Biomed 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.