Can seniors get flu and COVID boosters at once? new study says yes
NCT ID NCT04969276
First seen Nov 01, 2025 · Last updated May 14, 2026 · Updated 25 times
Summary
This study looked at whether adults aged 65 and older can safely get a high-dose flu vaccine and a Moderna COVID-19 booster at the same time. About 306 volunteers who had already received two doses of the Moderna COVID-19 vaccine took part. Researchers measured side effects and immune responses to see if giving both shots together works as well as giving them separately.
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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.
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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Contacts and locations
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Locations
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Investigational Site Number :8400001
Peoria, Illinois, 61614, United States
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Investigational Site Number :8400002
Austin, Texas, 78705, United States
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Investigational Site Number :8400003
Glendale, Arizona, 85306, United States
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Investigational Site Number :8400004
Vista, California, 92083, United States
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Investigational Site Number :8400005
Centennial, Colorado, 80112, United States
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Investigational Site Number :8400006
San Diego, California, 92108, United States
Conditions
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