Fluzone® Procurement Guide: What Changed for the 2026-27 Flu Season
Flu vaccine ordering resets every season. The strain composition changes, presentation availability shifts, and ACIP guidance can move the recommended formulation for a given patient group. A practice that orders off last season’s notes risks stocking the wrong mix or missing a current guidance point altogether.
This guide covers what changed for the 2026-27 season for Fluzone®, manufactured by Sanofi, including the current formulation, updated strains, dosing, presentation options, and the ACIP guidance that applies to vaccine selection this season.
What Changed for 2026-27
Three things are different from prior seasons and worth confirming before you place your order:
- Fluzone® is trivalent, not quadrivalent. Quadrivalent flu vaccines were phased out starting with the 2024-25 season, after public health authorities removed the B/Yamagata lineage component industry-wide because that strain is no longer circulating. If your ordering notes or reorder templates still reference “Fluzone® Quadrivalent,” that SKU no longer applies.
- All three strain components were updated for 2026-27. Per FDA’s composition recommendation for egg-based vaccines, which includes Fluzone®, the 2026-27 formulation targets an A/Missouri/11/2025 (H1N1)pdm09-like virus, an A/Darwin/1454/2025 (H3N2)-like virus, and a B/Tokyo/EIS13-175/2025 (B/Victoria lineage)-like virus. The H3N2 update reflects the subclade K virus that circulated widely during the 2025-26 season.
- ACIP’s current guidance calls for single-dose, thimerosal-free formulations for children 18 and younger, pregnant patients, and all adults. This affects which presentation you should be ordering as your primary stock.
How Pipeline Medical Supports Flu Season Ordering
Pipeline Medical works as a single-source procurement partner for licensed non-acute practices, so your flu vaccine order sits alongside the rest of your seasonal supply plan instead of requiring a separate vendor relationship.
Provider-only access means your account is reviewed before you can order, so pricing and availability reflect practice-level purchasing. That review process also gives our team visibility into what you’re ordering for, which helps flag presentation or age-band mismatches before an order ships.
Our ordering support team can help confirm which Fluzone® product line fits your patient mix. A pediatric-heavy panel and a 65-and-older panel should not be ordering identical inventory.
What to Know About Fluzone® Before You Order
Approved Age Range and Formulation
Fluzone® is an inactivated influenza vaccine, meaning it contains no live virus. For the 2026-27 season, it protects against three strains, an A(H1N1) strain, an updated A(H3N2) strain, and a B/Victoria lineage strain, selected annually based on circulating virus surveillance and confirmed by FDA composition guidance each spring. It is FDA-approved for persons 6 months of age and older.
Fluzone® is manufactured using an egg-based process. Screen for a history of severe allergic reaction to any vaccine component, including egg protein, before administration.
Do not confuse standard Fluzone® with Fluzone® High-Dose, a related but separate Sanofi product approved specifically for adults 65 and older, or with Flublok®, a recombinant flu vaccine from a different manufacturing platform with its own age indication. These are separate SKUs, and ordering the wrong one for your patient population is a real risk we flag during account review.
Dosing
Fluzone® is administered as a single 0.5 mL dose for persons 6 months of age and older. Some older labeling referenced a 0.25 mL option for children 6 through 35 months, but 0.25 mL prefilled syringes are no longer manufactured, so single-dose ordering should default to 0.5 mL across your pediatric and adult panels alike.
Children 6 months through 8 years who are receiving flu vaccine for the first time, and some in this age group who were previously vaccinated, may need two doses given at least 4 weeks apart. Confirm dosing history and current ACIP guidance before finalizing how many doses to stock per pediatric patient.
Confirm dosing volume against the current-season package insert at the time of administration. Labeling can update between seasons.
Presentations and Current ACIP Guidance
Fluzone® is supplied as a 0.5 mL single-dose prefilled syringe, a 0.5 mL single-dose vial, and a 0.5 mL multi-dose vial. The single-dose presentations are manufactured without thimerosal or any other preservative. The multi-dose vial contains thimerosal, a mercury-based preservative, at roughly 25 mcg of mercury per 0.5 mL dose.
ACIP recommends that children 18 and younger, pregnant patients, and all adults receive seasonal influenza vaccines only in single-dose, thimerosal-free formulations. If your practice serves pediatric, OB, or general adult patients, your primary stock should be the single-dose prefilled syringe or single-dose vial, not the multi-dose vial.
Fluzone® High-Dose and Flublok® for Patients 65 and Older
For adults 65 and older, ACIP preferentially recommends three vaccines when available: Fluzone® High-Dose, Flublok®, or Fluad®. If none of these three is in stock at the time of vaccination, ACIP recommends giving any other age-appropriate flu vaccine rather than delaying vaccination.
- Fluzone® High-Dose is approved for adults 65 and older and is given as a single 0.5 mL dose.
- Flublok® is a recombinant vaccine manufactured on a different platform than Fluzone®. Its approved age indication expanded in the 2025-26 season from 18 and older to 9 and older.
If your practice serves a 65-and-older population, confirm you’re stocking one of the three preferred options before the season ramps up.
Storage
Fluzone® requires refrigerated storage per manufacturer labeling and should not be frozen. Confirm your practice’s cold chain setup can hold the vaccine at the labeled temperature range from delivery through administration, and check the current package insert for exact storage parameters before your first shipment of the season.
Screening Before Administration
Per FDA-approved labeling, Fluzone® should not be given to anyone with a history of a severe allergic reaction, including anaphylaxis, to any component of the vaccine or to a previous dose of any influenza vaccine. If a patient experienced Guillain-Barré syndrome within 6 weeks of a prior flu vaccination, the decision to vaccinate again should weigh the potential benefits against the risks. These are labeling-level screening points, not a substitute for your practice’s own clinical protocol.
Frequently Asked Questions for Ordering Practices
Is Fluzone® quadrivalent or trivalent this season? Trivalent. Quadrivalent Fluzone® formulations were discontinued starting with the 2024-25 season, when the B/Yamagata lineage component was removed industry-wide because that strain is no longer circulating.
What age range does Fluzone® cover? 6 months of age and older, per FDA-approved labeling, at a single 0.5 mL dose. Confirm current guidance if any patient in your pediatric panel needs a two-dose series.
Which presentation should we stock for pediatric, OB, and general adult patients? Per current ACIP guidance, patients 18 and younger, pregnant patients, and all adults should receive single-dose, thimerosal-free formulations. That points most practices toward the prefilled syringe or single-dose vial rather than the multi-dose vial.
How is Fluzone® different from Fluzone® High-Dose or Flublok®? They’re separate products with separate age indications. Fluzone® High-Dose is indicated for adults 65 and older. Flublok® is a recombinant vaccine approved for persons 9 and older. Ordering the correct SKU for your patient population matters both clinically and for inventory planning.
What should we screen for before administering a dose? A history of severe allergic reaction to any vaccine component, including egg protein, or to a prior dose of any influenza vaccine, per FDA-approved labeling. Factor in prior Guillain-Barré syndrome history per label guidance. This guide is not a substitute for your practice’s clinical screening protocol.
How far in advance should we place our order? Flu vaccine is manufactured on an annual cycle with allocation that tightens as the season progresses. Practices that order earlier generally have more flexibility on presentation and quantity.
Review Your Options
Confirming the right presentation, dose volume, and quantity for your patient mix is easier with an active Pipeline Medical account. Request access to review current availability and place your flu season order with our ordering support team.
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The information provided on this site is for informational purposes only and is not intended to substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider or medical professional for guidance on any medical concerns, product use, or treatment decisions.