Dr. Carroll joined us in 2015 and is our Distinguished Research Fellow in Preclinical Sciences. Previously, Dr. Carroll spent 17 years in various scientific and leadership positions at Xoma, a biotechnology company, including Vice President of Preclinical Research and Scientific and Product Development.  Dr. Carroll received a B.A. in Biology from the University of California, San Diego, and a Ph.D. in Microbiology from the University of California, Los Angeles. He also completed a post doctorate in Microbiology at the University of California, Los Angeles, and he was an Assistant Professor in the Department of Microbiology and Molecular Genetics at Harvard Medical School.