About the Authors

Grant R. Campbell

Affiliation Department of Pediatrics, Division of Infectious Diseases, University of California San Diego, La Jolla, California, United States of America

Stephen A. Spector

saspector@ucsd.edu

Affiliations Department of Pediatrics, Division of Infectious Diseases, University of California San Diego, La Jolla, California, United States of America, Rady Children's Hospital, San Diego, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GRC SAS. Performed the experiments: GRC. Analyzed the data: GRC SAS. Contributed reagents/materials/analysis tools: SAS. Wrote the paper: GRC SAS.