About the Authors

Iana H. Haralambieva

Roles Conceptualization, Data curation, Writing – original draft, Writing – review & editing

Affiliation Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minnesota, United States of America

Richard B. Kennedy

Roles Conceptualization, Formal analysis, Writing – original draft, Writing – review & editing

Affiliation Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minnesota, United States of America

Whitney L. Simon

Roles Data curation, Writing – original draft

Affiliation Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minnesota, United States of America

Krista M. Goergen

Roles Formal analysis, Writing – original draft, Writing – review & editing

Affiliation Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, United States of America

Diane E. Grill

Roles Conceptualization, Formal analysis, Writing – original draft, Writing – review & editing

Affiliation Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, United States of America

Inna G. Ovsyannikova

Roles Conceptualization, Data curation, Formal analysis, Writing – original draft, Writing – review & editing

Affiliation Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minnesota, United States of America

Gregory A. Poland

Roles Conceptualization, Funding acquisition, Supervision, Writing – original draft, Writing – review & editing

poland.gregory@mayo.edu

Affiliation Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minnesota, United States of America

Competing Interests

Dr. Poland is the chair of a Safety Evaluation Committee for novel investigational vaccine trials being conducted by Merck Research Laboratories. Dr. Poland offers consultative advice on vaccine development to Merck & Co. Inc., Avianax, Dynavax, Novartis Vaccines and Therapeutics, Adjuvance Technologies, Seqirus, and Protein Sciences. Drs. Poland and Ovsyannikova hold three patents related to vaccinia and measles peptide research. Dr. Kennedy has received funding from Merck Research Laboratories to study waning immunity to mumps vaccine. This does not alter our adherence to PLOS ONE policies on sharing data and materials.