Long-term Safety Follow-up of Participants Exposed to the Candidate Ebola Vaccines Ad26.ZEBOV and/or MVA-BN-Filo

Inclusion Criteria:

• Male or female who participated in a Phase 1, 2 or 3 clinical study with Humanadenovirus serotype 26 (Ad26) expressing the Ebola virus Mayinga variant glycoprotein (Ad26.ZEBOV) and/or Modified Vaccinia Virus Ankara ‐ Bavarian Nordic Filo‐vector (MVA-BN-Filo) and has been exposed to Ad26.ZEBOV and/or MVA-BN-Filo (Cohort 1)

• Female who participated in a Phase 1, 2 or 3 clinical study with Ad26.ZEBOV and/orMVA-BN-Filo and became pregnant with estimated conception within 28 days aftervaccination with MVA-BN-Filo or within 3 months after vaccination with Ad26.ZEBOV (Cohort 2)

• Child born to female participants exposed to Ad26.ZEBOV and/or MVA-BN-Filo in a Phase 1, 2, or 3 clinical study who became pregnant with estimated conception within 28days after vaccination with MVA-BN-Filo or within 3 months after vaccination withAd26.ZEBOV (Cohort 3)

• Must sign an informed consent form for the current study (or their legally acceptablerepresentative must sign) indicating that he or she understands the purpose of, andprocedures required for, the study and is willing to participate in the study (or lettheir child participate); Assent is also required of children capable ofunderstanding the nature of the study (typically 7 years of age and older)

Exclusion Criteria:

• No exclusions beyond those that are not meeting the inclusion criteria