About the Authors

Mary G. Krauland

mgk8@pitt.edu

Affiliation Infectious Diseases Epidemiology Research Unit, School of Medicine and Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvanian, United States of America

Julie C. Dunning Hotopp

Affiliation The Institute for Genome Sciences, University of Maryland School of Medicine, University of Maryland, Baltimore, Maryland, United States of America

David R. Riley

Affiliation The Institute for Genome Sciences, University of Maryland School of Medicine, University of Maryland, Baltimore, Maryland, United States of America

Sean C. Daugherty

Affiliation The Institute for Genome Sciences, University of Maryland School of Medicine, University of Maryland, Baltimore, Maryland, United States of America

Jane W. Marsh

Affiliation Infectious Diseases Epidemiology Research Unit, School of Medicine and Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvanian, United States of America

Nancy E. Messonnier

Affiliation Meningitis and Vaccine Preventable Diseases Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Leonard W. Mayer

Affiliation Meningitis and Vaccine Preventable Diseases Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Hervé Tettelin

Affiliation The Institute for Genome Sciences, University of Maryland School of Medicine, University of Maryland, Baltimore, Maryland, United States of America

Lee H. Harrison

Affiliation Infectious Diseases Epidemiology Research Unit, School of Medicine and Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvanian, United States of America

Competing Interests

Dr. Harrison receives research support from Sanofi Pasteur and has served as a consultant to GlaxoSmithKline, Novartis Vaccines, Merck, Sanofi Pasteur, and Pfizer. Dr. Krauland and Dr. Marsh receive research support from Sanofi Pasteur. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MGK JCDH JWM HT LHH. Performed the experiments: MGK JCDH. Analyzed the data: MGK JCDH. Contributed reagents/materials/analysis tools: MK JCDH DRR SCD NEM LWM. Wrote the paper: MGK JCDH JWM LHH. Reviewed the manuscript: MGK JCDH DRR SCD JWM NEM LWM HT LHH.