About the Authors

Ho Seong Seo

Affiliation Division of Infectious Diseases, Veterans Affairs Medical Center and the University of California San Francisco, San Francisco, California, United States of America

Yan Q. Xiong

Affiliations Department of Medicine, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California, United States of America, Geffen School of Medicine at UCLA, Los Angeles, California, United States of America

Paul M. Sullam

paul.sullam@ucsf.edu

Affiliation Division of Infectious Diseases, Veterans Affairs Medical Center and the University of California San Francisco, San Francisco, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HSS YQX PMS. Performed the experiments: HSS YQX. Analyzed the data: HSS YQX PMS. Contributed reagents/materials/analysis tools: HSS YQX PMS. Wrote the paper: HSS YQX PMS.