About the Authors

David C. Nickle

Affiliation Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America

Laura Heath

Affiliation Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America

Mark A. Jensen

Current address: Department of HABE (Epidemiology), College of Public Health, and Department of Genetics in the Franklin College of Arts and Sciences, University of Georgia, Athens, Georgia, United States of America

Affiliation Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America

Peter B. Gilbert

Affiliation Department of Biostatistics, University of Washington and Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America

James I. Mullins

Affiliation Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America

Sergei L. Kosakovsky Pond

To whom correspondence should be addressed. E-mail: spond@ucsd.edu

Affiliation Department of Pathology, University of California, San Diego, La Jolla, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DN JM SK. Performed the experiments: DN SK. Analyzed the data: DN PG SK. Contributed reagents/materials/analysis tools: DN SK MJ LH. Wrote the paper: DN JM PG SK.