Gut health boost may strengthen baby vaccines after antibiotics

NCT ID NCT07189390

First seen Nov 01, 2025 · Last updated May 09, 2026 · Updated 29 times

Summary

This study tests whether giving a probiotic (Infloran®) to babies who received antibiotics in their first month of life can improve their immune response to routine vaccines. Antibiotics can reduce helpful gut bacteria, which may weaken vaccine protection. The trial will compare antibody levels in 360 infants who get either the probiotic or a placebo, aiming to see if the probiotic helps them produce more protective antibodies.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Flinders Medical Centre

    Adelaide, South Australia, 5042, Australia

  • Women's and Children's Hospital, Adelaide

    Adelaide, South Australia, 5006, Australia

Conditions

Explore the condition pages connected to this study.