mesenteric lymph node with SIV (IMAGE) Texas Biomedical Research Institute Caption A mesenteric lymph node containing SIV RNA (red dots) in this image taken with a Comb-CODEX-RNAscope. The lymph node also contains B cell zones (green) and T cell zones (blue). Credit University of Nebraska, Lincoln/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.