This solicitation is for the supply of Southern Hemisphere Influenza Vaccine for the 2027-2028 season, with approximately 30,000 doses (adjustable) in pre-filled 0.5 mL syringes for intramuscular use. The vaccine must be FDA-approved and recommended by the CDC's ACIP. An indefinite quantity contract is proposed with a guaranteed minimum of 75% and maximum of 150% of the annual estimate. Deliveries will be made to Defense Depot New Cumberland, PA, with a preferred delivery schedule of 100% by March 12, 2027. The projected solicitation date is September 2026.