2026-27 Flu Vaccine: What Central Texans Need to Know

Flu season is ramping up across Central Texas, and this year's vaccine comes with a few updates worth knowing about.

Here is what is different for 2026-27 and how to make the most of your protection.

A Refreshed Formula

This year’s flu shot has been updated to better match the viruses expected to circulate. All three strains in the 2026-27 formula were refreshed: two influenza A viruses and one influenza B virus. That includes a new H3N2 component aimed at a fast-spreading variant, known as subclade K, that drove much of last winter’s flu season.

The variant emerged after last year’s vaccine strains had already been selected, so it was not a perfect match. Even so, vaccination still helped protect against serious illness.

Because flu viruses change constantly and protection fades over time, a fresh shot each year gives your immune system the best chance of recognizing what is out there.

New Options for Adults 50 and Older

The U.S. Food and Drug Administration, or FDA, recently made history by approving mFLUSIVA, the first mRNA flu vaccine ever approved in the U.S. It is available this season for adults 50 and older.

Instead of putting a piece of the virus in your body, the vaccine gives your cells a short set of instructions to make a harmless piece of the flu virus. Your immune system practices on that piece and learns what to look for. It cannot give you the flu.

Availability varies by pharmacy and provider, so ask which options are on hand near you.

For adults 65 and older, the CDC recommends a high-dose, recombinant or adjuvanted vaccine when available. These are designed to create a stronger immune response in older adults. mFLUSIVA is also approved for this age group, and some medical groups include it among the stronger options. Ask your provider which one is the best fit for you.

What Has Not Changed

The Centers for Disease Control and Prevention recommends an annual flu vaccine for nearly everyone 6 months and older. Children ages 6 months through 8 who have never been vaccinated may need two doses. A nasal spray option is also available for eligible people ages 2 through 49. Talk with your child’s pediatrician or your own health care provider to find the right fit.

October is ideal, but it’s not too late. Protection builds in about two weeks, and flu activity typically peaks from December through February. If you haven’t gotten your shot yet, now is a great time.

When to Seek Care

The vaccine lowers your risk of getting sick and of severe illness, but no vaccine is perfect. If you wake up with a sudden fever, body aches, chills, cough or exhaustion, you should call your primary care provider.

If you are having trouble breathing or experiencing chest pain, confusion, signs of dehydration or a fever that will not break, head to the ER right away.

Premier ER + Urgent Care has walk-in locations in Waco, Woodway, Temple, and San Marcos to help you and your family feel better, whatever this flu season brings.

Find a location near you at Premier.Care/locations.