A Study to Evaluate the Immunogenicity, Safety and Tolerability of Ad26.ZEBOV and MVA-BN-Filo in Healthy Adult Participants

Inclusion Criteria: * Healthy in the Investigator's clinical judgment on the basis of medical history, physical examination, electrocardiogram (ECG) and vital signs performed at Screening * Healthy on the basis of clinical laboratory tests performed at Screening * Before randomization, a woman must be either of childbearing potential and practicing (or intending to practice) a highly effective method of birth control consistent with local regulations regarding the use of birth control methods for participants participating in clinical studies, beginning at least 28 days prior to vaccination OR not of childbearing potential: postmenopausal (greater than \[\>\] 45 years of age with amenorrhea for at least 2 years or any age with amenorrhea for at least 6 months, and a serum follicle stimulating hormone (FSH) level \>40 international unit per milliliter \[IU/L\]); permanently sterilized (for example, bilateral tubal occlusion \[which includes tubal ligation procedures as consistent with local regulations\], hysterectomy, bilateral salpingectomy, bilateral oophorectomy); or otherwise be incapable of pregnancy * Woman of childbearing potential must have a negative serum \[beta-human chorionic gonadotropin (beta-hCG)\] at Screening and a negative urine beta-hCG pregnancy test immediately prior to each study vaccine administration * Man who is sexually active with a woman of childbearing potential and has not had a vasectomy performed more than 1 year prior to Screening must be wil…