AUTHOR=Roestenberg Meta , Kamerling Ingrid M. C. , de Visser Saco J. TITLE=Corrigendum: Controlled Human Infections As a Tool to Reduce Uncertainty in Clinical Vaccine Development JOURNAL=Frontiers in Medicine VOLUME=6 YEAR=2019 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2019.00023 DOI=10.3389/fmed.2019.00023 ISSN=2296-858X