The Defense Logistics Agency Troop Support seeks an indefinite-quantity contract for approximately 300,000 doses of FDA-approved, ACIP-recommended injectable egg-free influenza vaccine for the 2027-2028 flu season, supplied in prefilled syringes for adults 18 and older. Deliveries will be made to Defense Depot New Cumberland, PA, with a preferred schedule requiring 40% by August 12, 2027, 25% by August 26, 2027, 25% by September 9, 2027, and 10% by September 23, 2027. The guaranteed minimum is 75% of the annual estimate, with a contract maximum of 150%. Other delivery schedules may be considered. The projected solicitation date is October 2026.