Texas Flu Cases Rose as New mRNA Vaccine Arrived

As Texas flu activity climbs, residents 50 and older may soon have access to a new mRNA vaccine.

Updated on Sept. 22, 2026 in COVID-19

Texas Flu Cases Rose as New mRNA Vaccine Arrived

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Do you plan to get a flu vaccine this year?

Influenza cases have increased across Texas, prompting health officials to underscore the importance of seasonal vaccination as flu activity ticks upward. A new mRNA-based flu vaccine has also received FDA approval for adults ages 50 and older.

Why it matters

Flu remains a significant health risk for older adults, pregnant women, young children, and those with chronic health conditions. Vaccination is a key tool in preventing severe illness and hospitalization during the high-transmission season.

A Phase 3 study of 40,000 patients demonstrated that the new mRNA vaccine performed 27% better than traditional flu shots. Researchers are still evaluating real-world distribution logistics as the vaccine becomes available.

The players

FDA

The federal agency responsible for regulating pharmaceuticals and ensuring the safety and efficacy of new medical treatments.

The details

The new mRNA vaccine utilizes the same underlying technology as COVID-19 vaccines to instruct cells to produce proteins that trigger an immune response. Like standard flu shots, it requires two weeks following administration to build sufficient protective antibodies. Established vaccines remain highly effective, reducing hospitalizations by 40% in adults and up to 60% in children.

Texas flu cases were reported as increased in September 2026.
October is the recommended timeframe for receiving a seasonal flu vaccination.

Health Landscape

The approval of this mRNA-based flu vaccine marks a notable shift in how influenza is managed by leveraging an established technology platform. This development extends the mRNA vaccine development platform, which gained widespread clinical utility during the pandemic, into the seasonal flu market.

Residents should speak with their doctor about timing their annual flu shot, keeping in mind that it takes two weeks to develop full protection. Those aged 50 and older should discuss whether the new mRNA option or a traditional vaccine is most appropriate for their health history.

The takeaway

Vaccination is critical for vulnerable populations, as 90% of children who died from the flu over the last two seasons were unvaccinated. If you have not yet been immunized for the season, consult your physician this month to discuss your best options for protection.