<i>Mycobacterium vaccae</i> (IMAGE) University of California - San Diego Caption This is <em>Mycobacterium vaccae</em>. Credit Photo by Christopher Lowry Usage Restrictions Use photo credit 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.