1 Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia. Electronic address: Kelli.MacDonald@qimrberghofer.edu.au.
2 Department of Blood and Marrow Transplantation and Cellular Immunotherapy, Moffit Cancer Center, Tampa, Florida.
3 Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah.