HOUSTON — Adults 65 and older who received a high-dose flu vaccine had a nearly 55% lower risk of developing Alzheimer’s disease, according to a study led by UTHealth Houston and published in the journal Neurology, the university said in a release carried by ScienceDaily. The finding is an association and does not prove the vaccine prevents the disease.
What researchers found
The team analyzed nearly 200,000 adults 65 and older. The high-dose result compares with a 40% reduction previously associated with the standard-dose vaccine, the release said. A 2022 study led by Dr. Paul Schulz had found flu vaccination associated with lower Alzheimer’s risk.
Why it matters
More than 7 million Americans 65 and older were living with Alzheimer’s in 2025, about 1 in 9 in that age group, and the figure is projected to more than double by 2050, according to the release.
More coverage is in our Health section.
Sources
Read next in Science
Most read this week
- Abdul El-Sayed and the Muslim Brotherhood Claims: What’s Confirmed and What Isn’t
- Stock Futures Erase a 2.4% Overnight Drop as Markets Digest Democrats’ Sweep of Congress
- Spain Transport Minister Óscar Puente Quits 26 Days Before Election Over Crash That Killed 69
- Boston Plans to Close 3 Schools in 2028 as Enrollment Drops as Much as 58%
- GM Korea’s Sales Jump 26.6% on Chevrolet Exports as Hyundai Slips 6.3% and Korean Factory Growth Cools
Latest
- UN Gaza Funding Timeline: A $4 Billion Appeal, Then Food Cuts, Then New Pleas for Cash
- Taiwan Detains Small Communist Party’s Chief Over Alleged Chinese Funding Before Nov. 28 Elections
- France Says Europeans Will Join U.S.-Mediated Ukraine Talks in Abu Dhabi on Nov. 10–11
- Russian Strikes Cut Power to About 850,000 in Ukraine as Zaporizhzhia Plant Loses Outside Supply
- Heavy Rain Floods Tents Across Gaza as Aid Groups Warn of Worsening Conditions