About the Authors

Meghan F. Davis

mdavis@jhsph.edu

Affiliation Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Amy E. Peterson

Affiliation Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Kathleen G. Julian

Affiliation Penn State Hershey Medical Center, Hershey, Pennsylvania, United States of America

Wallace H. Greene

Affiliation Penn State Hershey Medical Center, Hershey, Pennsylvania, United States of America

Lance B. Price

Affiliation Division of Pathogen Genomics, The Translational Genomics Research Institute (TGen North), Phoenix, Arizona, United States of America

Kenrad Nelson

Affiliation Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Cynthia J. Whitener

Affiliation Penn State Hershey Medical Center, Hershey, Pennsylvania, United States of America

Ellen K. Silbergeld

Affiliation Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MFD AEP KGJ KN CJW EKS. Performed the experiments: MFD AEP KGJ WHG LBP CJW. Analyzed the data: MFD AEP KJG CJW EKS. Contributed reagents/materials/analysis tools: MFD AEP WHG LBP EKS. Wrote the paper: MFD AEP KGJ WHG LBP KN CJW EKS.