About the Authors

Amanda E. Semper

Contributed equally to this work with: Amanda E. Semper, M. Jana Broadhurst

Affiliation Public Health England, Porton Down, United Kingdom

M. Jana Broadhurst

Contributed equally to this work with: Amanda E. Semper, M. Jana Broadhurst

Affiliation Partners In Health, Boston, Massachusetts, United States of America

Jade Richards

Affiliations Public Health England Laboratory, Port Loko, Sierra Leone, Mid Essex Hospital Services NHS Trust, Chelmsford, United Kingdom

Geraldine M. Foster

Affiliations Public Health England Laboratory, Port Loko, Sierra Leone, Liverpool School of Tropical Medicine, Liverpool, United Kingdom

Andrew J. H. Simpson

Affiliations Public Health England, Porton Down, United Kingdom, Public Health England Laboratory, Port Loko, Sierra Leone

Christopher H. Logue

Affiliation Public Health England, Porton Down, United Kingdom

J. Daniel Kelly

Affiliation Wellbody Alliance, Freetown, Sierra Leone

Ann Miller

Affiliations Partners In Health, Boston, Massachusetts, United States of America, Harvard Medical School, Boston, Massachusetts, United States of America

Tim J. G. Brooks

Affiliations Public Health England, Porton Down, United Kingdom, Public Health England Laboratory, Port Loko, Sierra Leone

Megan Murray

Affiliations Partners In Health, Boston, Massachusetts, United States of America, Harvard Medical School, Boston, Massachusetts, United States of America

Nira R. Pollock

Nira.pollock@childrens.harvard.edu

Affiliations Partners In Health, Boston, Massachusetts, United States of America, Department of Laboratory Medicine, Boston Children’s Hospital, Boston, Massachusetts, United States of America

Competing Interests

I have read the journal's policy and the authors of this manuscript have the following competing interests: MM is a member of the Editorial Board of PLOS Medicine. The authors declare that no further competing interests exist.

Author Contributions

Conceived and designed the experiments: AES MJB JDK AM MM NRP. Performed the experiments: JR GMF. Analyzed the data: AES MJB JR AM NRP. Contributed reagents/materials/analysis tools: AES AJHS CHL TJGB NRP. Wrote the first draft of the manuscript: AES MJB NRP. Contributed to the writing of the manuscript: AES MJB JR AJHS AM TJGB NRP. Agree with the manuscript’s results and conclusions: AES MJB JR GMF AJHS CHL JDK AM TJGB MM NRP. Organization and supervision of study training and testing procedures performed at PHE Porton Down and PHE Port Loko Laboratory: AES JR GMF AJHS CHL TJGB. Study protocol development and institutional approvals: AES MJB CHL JDK AM TJGB MM NRP. All authors have read, and confirm that they meet, ICMJE criteria for authorship.