About the Authors

Stephanie Abromaitis

Affiliation Program in Infectious Diseases and Immunity, University of California Berkeley, Berkeley, California, United States of America

Richard S. Stephens


Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SA RS. Performed the experiments: SA. Analyzed the data: SA RS. Wrote the paper: SA RS.