About the Authors

David A. Rasmussen

dar24@duke.edu (DAR); katia.koelle@duke.edu (KK)

Affiliation Department of Biology, Duke University, Durham, North Carolina, United States of America

Oliver Ratmann

Affiliations Department of Biology, Duke University, Durham, North Carolina, United States of America, Imperial College London, Department of Infectious Disease Epidemiology, London, United Kingdom

Katia Koelle

dar24@duke.edu (DAR); katia.koelle@duke.edu (KK)

Affiliations Department of Biology, Duke University, Durham, North Carolina, United States of America, Fogarty International Center, National Institutes of Health, Bethesda, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DAR OR KK. Performed the experiments: DAR. Analyzed the data: DAR. Wrote the paper: DAR OR KK.