About the Authors

Benjamin F. Arnold

benarnold@berkeley.edu

Affiliation Division of Epidemiology, School of Public Health, University of California, Berkeley, California, United States of America

Jeffrey W. Priest

Affiliation Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Katy L. Hamlin

Affiliation Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Delynn M. Moss

Affiliation Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

John M. Colford Jr

Affiliation Division of Epidemiology, School of Public Health, University of California, Berkeley, California, United States of America

Patrick J. Lammie

Affiliation Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BFA PJL JWP JMC. Performed the experiments: JWP KLH DMM PJL. Analyzed the data: BFA JWP. Wrote the paper: BFA JWP KLH DMM JMC PJL.