About the Authors

Abbie Oey

Roles Conceptualization, Formal analysis, Investigation, Validation, Writing – review & editing

Affiliation Janssen Research & Development, LLC, South San Francisco, California, United States of America

Matthew McClure

Roles Conceptualization, Formal analysis, Investigation, Methodology, Supervision, Visualization, Writing – review & editing

Current address: Aligos Therapeutics, South San Francisco, California, United States of America

Affiliation Janssen Research & Development, LLC, South San Francisco, California, United States of America

Julian A. Symons

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Writing – review & editing

Current address: Aligos Therapeutics, South San Francisco, California, United States of America

Affiliation Janssen Research & Development, LLC, South San Francisco, California, United States of America

Sushmita Chanda

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

Current address: Aligos Therapeutics, South San Francisco, California, United States of America

Affiliation Janssen Research & Development, LLC, South San Francisco, California, United States of America

John Fry

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Supervision, Writing – review & editing

Current address: Aligos Therapeutics, South San Francisco, California, United States of America

Affiliation Janssen Research & Development, LLC, South San Francisco, California, United States of America

Patrick F. Smith

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

Affiliation Certara Strategic Consulting, Parsippany, New Jersey, United States of America

Kathia Luciani

Roles Investigation, Project administration, Writing – review & editing

Affiliation Department of Infectious Diseases Hospital de Especialidades Pediátricas Omar Torrijos Herrera, Panama City, Panama

Michael Fayon

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

Affiliation CHU de Bordeaux, Pneumologie pédiatrique, CIC 1401 (INSERM), Hôpital Pellegrin-Enfants, Bordeaux Cedex, France

Kulkanya Chokephaibulkit

Roles Investigation, Supervision, Writing – review & editing

Affiliation Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand

Rattapon Uppala

Roles Investigation, Supervision, Writing – review & editing

Affiliation Department of Pediatrics, Khon Kaen University, Khon Kaen, Thailand

Jolanta Bernatoniene

Roles Investigation, Supervision, Writing – review & editing

Affiliation Paediatric Infectious Disease and Immunology Department, Bristol Royal Hospital for Children, Bristol, United Kingdom

Kenji Furuno

Roles Investigation, Supervision, Writing – review & editing

Affiliation General Pediatrics & Interdisciplinary Medicine Fukuoka Children’s Hospital, Fukuoka, Japan

Thorsten Stanley

Roles Investigation, Supervision, Writing – review & editing

Affiliation Department of Paediatrics, University of Otago, Wellington, New Zealand

Dymphy Huntjens

Roles Conceptualization, Data curation, Formal analysis, Methodology, Visualization, Writing – review & editing

Affiliation Janssen Research & Development, Beerse, Belgium

James Witek

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

jameswitek@gmail.com

Affiliation Janssen Research & Development, LLC, Titusville, New Jersey, United States of America

on behalf of the 503 and RSV2004 Study Groups

Full list of RSV503 and RSV2004 Study Groups is provided in the Acknowledgments.

Competing Interests

Abbie Oey, Matthew McClure, Julian A. Symons, Sushmita Chanda, John Fry, Dymphy Huntjens, and James Witek are current or former employees of Janssen Research & Development and may own stock/stock options in Johnson & Johnson. Patrick Smith works for Certara, a consulting firm in integrated drug development and has directly consulted with a variety of not‐for‐profit global health organizations, biotechnology, and pharmaceutical companies and governments with an interest in medical countermeasures against respiratory virus infections. Kathia Luciani, Michael Fayon, Kulkanya Chokephaibulkit, Rattapon Uppala, Jolanta Bernatoniene, Kenji Furuno, and Thorsten Stanley have no potential conflicts of interest to disclose. This does not alter our adherence to PLOS ONE policies on sharing data and materials.