New mRNA Flu Vaccine Approved: Boosting Protection Against Flu, COVID-19, and RSV
September 16, 2026
Vaccination remains the best defense against severe illness from flu, COVID-19, and RSV, with emphasis on protecting older adults, pregnant people, and young infants, while vaccines can benefit a broader population.
The flu season typically peaks between December and February, with activity possible from October to April, and regional timing can vary from year to year.
Florida will offer Moderna’s new mRNA flu vaccine, mFLUSIVA, at select pharmacies in the coming weeks, with wider availability rolling out through the fall after FDA lot releases.
Healthcare data show a stagnant national COVID-19 test positivity rate, though regional disparities exist, with higher positivity in Texas and neighboring states.
Laredo uses wastewater surveillance to track trends, even though COVID-19 is no longer a reportable disease in Texas.
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Summer wave may have involved fewer cases than prior years, but uncertainties in wastewater comparisons persist due to evolving virus dynamics and data interpretation.
A map and graphics are referenced to visualize trends, highlighting wastewater data and CDC metrics in guiding public health responses.
GP surveillance shows a very small uptick in confirmed clinical cases, with activity still below prior years, though emergency room Covid-19 admissions have risen recently.
COVID-19 activity is rising in several states as the respiratory season starts, with nationwide wastewater indicating high levels and a sharp post-summer rise.
CDC Rt Estimates indicate regional variation: some states show rising infections, others declining, and several unchanged.
Despite low overall national viral activity in wastewater, some states—especially in the South and West—report moderate to very high activity.
Summary based on 74 sources
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Sources

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Chicago Tribune • Sep 10, 2026
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