About the Authors

Heather D. Kamp

Affiliation Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts, United States of America

Darren E. Higgins

dhiggins@hms.harvard.edu

Affiliation Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HDK DEH. Performed the experiments: HDK. Analyzed the data: HDK DEH. Wrote the paper: HDK DEH.