Flu Cases Have Increased Across Texas
State health officials report a rise in influenza activity as the annual vaccination season begins.
Updated on Sept. 22, 2026 in COVID-19

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Influenza cases have increased throughout Texas as of late September 2026. Hospital laboratories across the state have recorded a higher percentage of positive influenza specimens.
Why it matters
The flu remains a significant health threat for vulnerable populations, including young children, pregnant women, the elderly, and individuals with chronic medical conditions. Vaccination is considered a critical tool for reducing severe illness and hospitalization.
Vaccines reduce hospitalizations by 40% for adults and up to 60% for children. In a study of 40,000 patients, a new mRNA flu vaccine for those 50 and older demonstrated a 27% improvement in efficacy over traditional options.
The players
Food and Drug Administration
The federal agency is responsible for protecting public health by ensuring the safety, efficacy, and security of human and veterinary drugs and biological products.
The details
The new mRNA-based flu vaccine, which utilizes technology similar to COVID-19 immunizations, is expected to reach select pharmacies soon. Individuals are advised that it typically requires two weeks after receiving a vaccine to develop protective levels of antibodies.
Timeline
Texas flu cases were confirmed to have increased as of September 22, 2026.
October is the recommended time for residents to receive their annual flu vaccination.
The Big Picture
The introduction of mRNA-based flu vaccines marks a significant shift away from traditional egg-based production methods. This development follows the FDA's recent approval of mRNA-based influenza vaccines for older adults.
Residents should prioritize scheduling their flu shots throughout October to ensure adequate antibody protection before seasonal activity peaks. Those aged 50 and older should consult their pharmacy regarding the availability of the new mRNA vaccine option.
The takeaway
Maintaining up-to-date vaccinations is the most effective way to prevent severe health outcomes, especially given that 90% of children who died from the flu over the last two seasons were unvaccinated. Taking action now provides the necessary two-week window to build immunity.
Further reading
For broader context on respiratory virus prevention and seasonal health trends, visit the COVID-19 section.
Source note: This article includes information reported by KXAN.
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