About the Authors

Stephen J. Popper

Affiliation Department of Microbiology and Immunology, Stanford University, Stanford, California, United States of America

Aubree Gordon

Affiliations Division of Epidemiology, School of Public Health, University of California, Berkeley, California, United States of America, Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, California, United States of America

Minghsun Liu

Affiliation Department of Microbiology, Immunology, and Molecular Genetics, University of California Los Angeles and Cedars-Sinai Medical Center, Los Angeles, California, United States of America

Angel Balmaseda

Affiliation Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua

Eva Harris

Affiliation Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, California, United States of America

David A. Relman

relman@stanford.edu

Affiliations Department of Microbiology and Immunology, Stanford University, Stanford, California, United States of America, Department of Medicine, Stanford University, Stanford, California, and Veterans Affairs Palo Alto Health Care System, Palo Alto, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SJP EH DAR. Performed the experiments: SJP ML AB. Analyzed the data: SJP AG ML AB EH DAR. Contributed reagents/materials/analysis tools: SJP AB EH DAR. Wrote the paper: SJP AG EH DAR.