About the Authors

Mark A. Travassos

Affiliation Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Berhane Beyene

Affiliation Ethiopian Public Health Institute, Addis Ababa, Ethiopia

Zenaw Adam

Affiliation JSI Research & Training Institute Inc., Arlington, Virginia, United States of America

James D. Campbell

Affiliation Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Nigisti Mulholland

Affiliation Department of Social Work, The Women’s Hospital, Melbourne, Australia

Seydou S. Diarra

Affiliation Centre pour le Développement des Vaccins, Mali (CVD-Mali), Bamako, Mali

Tassew Kassa

Affiliation Ethiopian Public Health Institute, Addis Ababa, Ethiopia

Lisa Oot

Affiliation JSI Research & Training Institute Inc., Arlington, Virginia, United States of America

Jenny Sequeira

Affiliation JSI Research & Training Institute Inc., Arlington, Virginia, United States of America

Mardi Reymann

Affiliation Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

William C. Blackwelder

Affiliation Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Yukun Wu

Affiliation Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Inna Ruslanova

Affiliation Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Jaya Goswami

Affiliation Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Samba O. Sow

Affiliation Centre pour le Développement des Vaccins, Mali (CVD-Mali), Bamako, Mali

Marcela F. Pasetti

Affiliation Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Robert Steinglass

Affiliation JSI Research & Training Institute Inc., Arlington, Virginia, United States of America

Amha Kebede

Affiliation Ethiopian Public Health Institute, Addis Ababa, Ethiopia

Myron M. Levine

mlevine@medicine.umaryland.edu

Affiliation Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Competing Interests

Zenaw Adam, Lisa Oot, Jenny Sequeira and Robert Steinglass are employed by JSI Research & Training Institute Inc. 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, as detailed online in the guide for authors. Authors from the Center for Vaccine Development of the University of Maryland (CVD) and from the Ethiopian Public Health Institute (EPHI), representing a state academic institution (CVD) and a national governmental institution (EPHI), respectively, declare that they have no competing interests. The role of JSI investigators in the serosurvey study does not alter the authors’ adherence to all PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: RS MML MAT SOS JDC MFP AK LO JS ZA BB. Performed the experiments: MAT ZA JDC NM SSD TK MR IR JG. Analyzed the data: MAT BB ZA JDC LO JS MR WCB YW MFP RS AK MML. Contributed reagents/materials/analysis tools: WCB YW MFP MML. Wrote the paper: MAT MML BB ZA JDC LO RS AK. Supervised the laboratory assays: MR MFP. Performed laboratory assays: MR IR JG. Data management: MAT BB SSD TK MR MFP WCB YW.