Quadrivalent Influenza HA Stem Vaccine VRC-FLUMOS0122-00-VP (SteMos1) With and Without ALFQ Adjuvant in Healthy Adults

"FLUMOS0122-00-VP (SteMos1) is a sterile, aqueous buffered solution supplied in 3 mL single-dose glass vials containing 0.7 +/- 0.1 mL with a vaccine concentration of 1080 mcg/mL.~The ALFQ drug product is a sterile suspension that contains 240 mcg of monophosphoryl 3-deacyl Lipid A (3D-PHAD) and 120 mcg QS-21 that is vialed at 0.6 mL/vial in 3.0 mL glass vials. 0.5 mL of ALFQ adjuvant will be mixed with the 60 or 180 mcg dose of SteMos1 during preparation in the pharmacy prior to"