Safety/Efficacy Study of Seqirus A/H7N9 IIV With or Without MF59(R) Adjuvant to Prevent Avian Influenza

Inclusion Criteria

• Provide written informed consent prior to initiation of any study procedures.
• Are able to understand and comply with planned study procedures and be available for all study visits.
• Are males or non-pregnant females, 18-64 years of age, inclusive.
• Are in good health*. *As determined by physical examination and medical history to evaluate acute or currently ongoing chronic medical diagnoses or conditions, defined as those that have been present for at least 90 days, which would affect the assessment of the safety of subjects or the immunogenicity of study vaccinations. Chronic medical diagnoses or conditions should be stable for the last 60 days (no hospitalizations, Emergency Room, or urgent care for condition and no adverse symptoms that need medical intervention such as medication change/supplemental oxygen). This includes no change in chronic prescription medication, dose, or frequency as a result of deterioration of the chronic medical diagnosis or condition in the 60 days prior to enrollment. Any prescription change that is due to change of health care provider, insurance company, etc., or that is done for financial reasons, as long as in the same class of medication, will not be considered a deviation of this inclusion criterion. Any change in prescription medication due to improvement of a disease outcome, as determined by the site principal investigator or appropriate sub-investigator, will not be considered a deviation of this inclusion criterion. Subjects may be on chronic or as needed (prn) medications if, in the opinion of the site principal investigator or appropriate sub-investigator, they pose no additional risk to subject safety or assessment of reactogenicity and immunogenicity and do not indicate a worsening of medical diagnosis or condition. Similarly, medication changes subsequent to enrollment and study vaccination are acceptable provided there was no deterioration in the subject's chronic medical condition that necessitated a medication change, and there is no additional risk to the subject or interference with the evaluation of responses to study vaccination. [Topical, nasal, and inhaled medications (with the exception of inhaled corticosteroids), herbals, vitamins, and supplements are permitted].
• Oral temperature is less than 100.0 degree Fahrenheit.
• Pulse is 47 to 100 beats per minute, inclusive.
• Systolic blood pressure is 85 to 150 millimeters of Mercury, inclusive.
• Diastolic blood pressure is 55 to 95 millimeters of Mercury, inclusive.
• Women of childbearing potential* must agree to practice an acceptable contraception method** from 30 days before first study vaccination until 60 days after last study vaccination.

*Not sterilized via tubal ligation, bilateral oophorectomy, salpingectomy, hysterectomy, or successful Essure(R) placement (permanent, non-surgical, non-hormonal sterilization) with documented radiological confirmation test at least 90 days after the procedure, and still menstruating or < 1 year of the last menses if menopausal.

**Includes non-male sexual relationships, abstinence from sexual intercourse with a male partner, monogamous relationship with vasectomized partner who has been vasectomized for 180 days or more prior to the subject receiving the first study vaccination, barrier methods such as male or female condoms with spermicide or with the use of applied spermicide, intrauterine devices, NuvaRing(R), and licensed hormonal methods such as implants, injectables, or oral contraceptives ("the pill").

• Women of childbearing potential must have a negative serum or urine pregnancy test within 24 hours prior to study vaccination.

Exclusion Criteria

• Have an acute illness*, as determined by the site Principal Investigatoor or appropriate sub-investigator, within 72 hours prior to study vaccination.

*An acute illness which is nearly resolved with only minor residual symptoms remaining is allowable if, in the opinion of the site pri