Antibiotics before vaccination: do they weaken protection?
NCT ID NCT06148025
First seen Jan 08, 2026 · Last updated May 23, 2026 · Updated 24 times
Summary
This study looks at whether taking antibiotics to reduce gut bacteria affects the immune response to the BCG vaccine. Healthy adults aged 18-35 will either receive antibiotics or not before getting the vaccine. Researchers will then measure how well the vaccine protects against a later challenge. The goal is to understand if gut bacteria play a key role in vaccine effectiveness.
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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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Locations
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South Australian Health and Medical Research Institute
RECRUITINGAdelaide, South Australia, 5000, Australia
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