High-Dose Flu Vaccine Linked to Reduced Alzheimer's Risk
A study found that high-dose flu vaccines may reduce Alzheimer's risk by 55% in older adults, with a stronger effect observed in women.
A recent study indicates that older adults receiving a high-dose influenza vaccine may experience a greater reduction in Alzheimer's disease risk compared to those receiving a standard dose. The research analyzed health data from approximately 200,000 participants aged 65 and older.
Participants who received the high-dose vaccine showed a 55% lower risk of Alzheimer's disease. This contrasts with a 40% reduction observed in those who received the standard vaccine dose.
Investigators noted that the protective effect of the high-dose flu vaccine was more pronounced in women than in men. The underlying biological mechanisms for this difference are not yet fully understood.
Previous research has also suggested a potential link between other vaccines, such as those for shingles, tetanus, diphtheria, and pneumonia, and a reduced risk of dementia.
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