Scientists deliberately infect volunteers with omicron to study the virus
NCT ID NCT06478420
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study intentionally exposes healthy adults aged 18-40 who have had a COVID-19 vaccine or prior infection to the Omicron BA.5 virus via nasal drops. The goal is to find the safest dose that causes a mild, controlled infection in 50-75% of participants, while monitoring side effects and how the virus spreads. It helps researchers better understand the virus in immune-experienced people, but does not offer a treatment or cure.
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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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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
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Locations
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Centre for Clinical Vaccinology and Tropical Medicine
Oxford, Oxfordshire, OX3 7LE, United Kingdom