About the Authors
Division of Experimental Medicine, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
California National Primate Research Center, Davis, California, United States of America
Department of Immunology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
Department of Microbiology, New York University, New York, New York, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MJB FY NWL JMM PL. Performed the experiments: MJB AA BK JM UMG JML IVC. Analyzed the data: MJB JM KEW CCK FY NWL JMM PL. Wrote the paper: MJB KEW JMM PL.