Hospital staff antibody study tracks COVID-19 immunity over a year
NCT ID NCT04426006
First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This study looked at how many hospital workers had COVID-19 antibodies and how long they lasted. Over 500 staff at a French cancer center gave blood samples and answered questionnaires at the start, 3 months, and 12 months. The goal was to understand immune response in people who may be exposed to the virus at work.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this study could help answer how long COVID-19 antibodies last in healthcare workers and guide infection control policies.
What could go wrong
This is an observational study, not a treatment trial. It only measures antibodies and cannot predict protection from future infection or severe disease.
Disclaimer
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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.
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.
Contacts and locations
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Locations
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Institut Bergonié
Bordeaux, 33076, France