Which flu shot works best for seniors? major study reveals answers
NCT ID NCT03330132
First seen May 24, 2026 · Last updated May 24, 2026
Summary
This study tested different types of flu vaccines in over 1,800 adults aged 65-82 in Hong Kong to see which one provides the strongest and longest immune response. Participants received either a standard flu shot or a more potent vaccine (high-dose, adjuvanted, or recombinant) each year for up to four years. The goal was to find the best vaccination strategy to protect older adults from the flu.
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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Locations
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The University of Hong Kong
Hong Kong, China
Conditions
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