Granuloma Formation (VIDEO) Texas Biomedical Research Institute This video is under embargo. Please login to access this video. Caption Watch granuloma formation in real time: The researchers isolate blood immune cells from volunteers and then infect them with TB in a biosafety level 3 (BSL-3) laboratory at Texas Biomed. A live cell microscope captures what happens next: clusters of cells forming around the bacteria, which are granuloma-like structures. Credit Texas Biomed Usage Restrictions May reuse with credit License Original 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.