About the Authors

Evan M. Bloch

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

ebloch2@jhmi.edu

Affiliation Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Zakayo Mrango

Roles Data curation, Investigation, Project administration, Supervision, Writing – review & editing

Affiliation National Institute for Medical Research, Kilosa, Tanzania

Mabula Kasubi

Roles Data curation, Project administration, Resources, Writing – review & editing

Affiliation Department of Microbiology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania

Jerusha Weaver

Roles Data curation, Investigation, Project administration, Writing – review & editing

Affiliation Dana Center for Preventive Ophthalmology, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Aleksandra Mihailovic

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

Affiliation Dana Center for Preventive Ophthalmology, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Beatriz Munoz

Roles Conceptualization, Formal analysis, Writing – review & editing

Affiliation Dana Center for Preventive Ophthalmology, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Anna Weimer

Roles Investigation, Project administration, Writing – review & editing

Affiliation Dana Center for Preventive Ophthalmology, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Andrew Levin

Roles Formal analysis, Investigation, Writing – review & editing

Affiliation Kephera Diagnostics, LLC, Framingham, Massachusetts, United States of America

Laura Tonnetti

Roles Formal analysis, Investigation, Methodology, Writing – review & editing

Affiliation American Red Cross, Rockville, Maryland, United States of America

Jeffrey M. Linnen

Roles Investigation, Writing – review & editing

Affiliation Grifols Diagnostic Solutions Inc., San Diego, California, United States of America

Vanessa Brès

Roles Formal analysis, Investigation, Writing – review & editing

Affiliation Grifols Diagnostic Solutions Inc., San Diego, California, United States of America

Douglas E. Norris

Roles Conceptualization, Resources, Writing – review & editing

Affiliation Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Giovanna Carpi

Roles Project administration, Writing – review & editing

Affiliation Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Sheila K. West

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Writing – original draft, Writing – review & editing

Affiliation Dana Center for Preventive Ophthalmology, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests: AL was President and Chief Scientific Officer of Immunetics, Inc. at the time when the ELISA that was used in this study, was developed. EMB was previously a co-investigator on a study funded by a grant to Immunetics from the National Heart, Lung and Blood Institute to support development of the ELISA and ancillary studies to follow-up seroreactive blood donors. AL was President and Chief Scientific Officer of Immunetics, Inc. at the time this study was conducted. EMB was co-investigator on a prior study funded by a grant to Immunetics from the National Heart, Lung and Blood Institute to develop the ELISA that was used in the current study. Grifols Diagnostic Solutions Inc, of which JL and VB are employees, develops assays for blood donor screening, including the Procleix® Babesia assay.