Patient description: A 67-year-old healthy woman came to the clinic to have her flu shot in early October. She works at a rehab center and has no underlying disease. It is her first vaccination this year. she is menopausal and has 4 children. She does not some. She takes daily multivitamins and anti-hypertensive drugs. She exercises regularly for 30 minutes a day at least 5 days a week. She has no allergies to any food or drugs.

Clinical trial eligibility criteria: eligible ages (years): 18.0-70.0,  Influenza Healthy adults between the ages of 18-70 years inclusive 2. Based on history and examination, in good general health and without history of any of the conditions listed in the  Received at least one licensed influenza vaccine from 2014 to the present 4. Able and willing to complete the informed consent process 5. If enrolled in Group 1: Available for clinic visits for 52 weeks after enrollment and through an influenza season 6. If enrolled in Group 2A, 2B, 2C, or 2D: Available for clinic visits for 68 weeks after enrollment and through an influenza season 7. Willing to have blood samples collected, stored indefinitely, and used for research purposes 8. Able to provide proof of identity to the satisfaction of the study clinician completing the enrollment process 9. Physical examination and laboratory results without clinically significant findings and a Body Mass Index (BMI) less than or equal to 40 within the 28 days before enrollment Laboratory within 28 days before enrollment 10. White blood cells (WBC) and differential either within institutional normal range or accompanied by the site Principal Investigator (PI) or designee approval 11. Total lymphocyte count greater than or equal to 800 cells/mm^3 12. Platelets = 125,000 000/mm3 13. Hemoglobin within institutional normal range 14. Serum iron either within institutional normal range or accompanied by the site PI or designee approval 15. Serum ferritin within institutional normal range or accompanied by the site PI or designee approval 16. Alanine aminotransferase (ALT) less than or equal to 1.25 x institutional upper limit of normal (ULN) 17. Aspartate aminotransferase (AST) less than or equal to 1.25 x institutional ULN 18. Alkaline phosphatase (ALP) <1.1 x institutional ULN 19. Total bilirubin within institutional normal range 20. Serum creatinine less than or equal to 1.1 x institutional ULN 21. Negative for HIV infection by an FDA-approved method of detection applicable to women of childbearing potential: 22. Negative beta-human chorionic gonadotropin (beta-HCG) pregnancy test (urine or serum) on the day of enrollment 23. Agrees to use an effective means of birth control from at least 21 days prior to enrollment through the end of the study Breast-feeding or planning to become pregnant during the study. Subject has received any of the following substances: 2. More than 10 days of systemic immunosuppressive medications or cytotoxic medications within the 4 weeks prior to enrollment or any within the 14 days prior to enrollment 3. Blood products within 16 weeks prior to enrollment 4. Live attenuated vaccines within 4 weeks prior to enrollment 5. Inactivated vaccines within 2 weeks prior to enrollment 6. Investigational research agents within 4 weeks prior to enrollment or planning to receive investigational products while on the study 7. Current allergy treatment with allergen immunotherapy with antigen injections, unless on maintenance schedule 8. Current anti-TB prophylaxis or therapy 9. Previous investigational H1 influenza vaccine 10. Previous investigational ferritin-based vaccine 11. Receipt of a licensed influenza vaccine within 6 weeks before trial enrollment Subject has a history of any of the following clinically significant conditions: 12. Serious reactions to vaccines that preclude receipt of study vaccinations as determined by the investigator 13. Hereditary angioedema, acquired angioedema, or idiopathic forms of angioedema 14. Asthma that is not well controlled 15. Diabetes mellitus (type I or II), with the exception of gestational diabetes 16. Thyroid disease that is not well controlled 17. Idiopathic urticaria within the past year 18. Autoimmune disease or immunodeficiency 19. Hypertension that is not well controlled (baseline systolic > 140 mmHg or diastolic > 90 mmHg) 20. Bleeding disorder diagnosed by a doctor (e.g. factor deficiency, coagulopathy, or platelet disorder requiring special precautions) or significant bruising or bleeding difficulties with IM injections or blood draws 21. Malignancy that is active or history of malignancy that is likely to recur during the period of the study. 22. Seizure disorder other than 1) febrile seizures, 2) seizures secondary to alcohol withdrawal more than 3 years ago, or 3) seizures that have not required treatment within the last 3 years 23. Asplenia, functional asplenia or any condition resulting in the absence or removal of the spleen 24. Guillain-Barr(SqrRoot)(Copyright) Syndrome 25. Any medical, psychiatric, social condition, occupational reason or other responsibility that, in the judgment of the investigator, is a contraindication to protocol participation or impairs a subject s ability to give informed consent