
Fluzone Trivalent is an inactivated influenza vaccine designed for intramuscular injection. Its active ingredient includes a split virus containing hemagglutinin antigens derived from three specific influenza strains: H1N1, H3N2, and B Victoria lineage. The vaccine is available as a 0.5 mL single-dose pre-filled syringe or a multi-dose vial with each dose containing the specified influenza antigens. The single-dose presentation does not contain preservatives, whereas the multi-dose vial includes thimerosal as a preservative.