Fig. 1: Consort diagram.

1MVA-EbolaZ (MVA): recombinant modified vaccinia virus Ankara Zaire ebolavirus (EBOV) vaccine2; cAd3-EBO: bivalent Zaire ebolavirus (EBOV) and Sudan ebolavirus (SUDV) chimpanzee adenovirus 3 (cAd3) vectored vaccine3, cAd3-EBOZ: monovalent Zaire ebolavirus (EBOV) chimpanzee adenovirus 3 (cAd3) vectored vaccine4; Previous Ebolavirus Vaccination: study participants previously participated in NCT022318665; Previous Ebolavirus Vaccination: study participants previously participated in NCT00997607.