New study monitors flu vaccine safety for seniors in korea
NCT ID NCT07282795
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study is checking the safety of a high-dose flu vaccine called Efluelda in adults aged 65 and older in South Korea. About 670 participants will receive one shot and be monitored for side effects for about a month. The goal is to see how often reactions like injection site pain or other symptoms occur under routine medical care.
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Conditions
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