Vaccine Follow-Up: how long does protection last in babies?
NCT ID NCT07648641
First seen Jun 27, 2026 · Last updated Aug 06, 2026 · Updated 2 times
Summary
This study follows 100 infants who received a pneumococcal vaccine in an earlier trial. Researchers will take a small blood sample to measure antibody levels one and two years after vaccination. The goal is to see how long protection against pneumococcal infections lasts. No new vaccine or treatment is given in this study.
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Conditions
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