| Affiliation: | 1.Department of Microbiology and Immunology, University of California San Francisco, San Francisco, California, United States of America;2.Department of Medicine, Infectious Diseases Division, University of California San Francisco, San Francisco, California, United States of America;3.Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, California, United States of America;The University of North Carolina at Chapel Hill, United States of America |
