97,000 tested: how COVID-19 spread through france
NCT ID NCT04392388
First seen Jan 11, 2026 · Last updated Apr 28, 2026 · Updated 23 times
Summary
This study measured how many people in France had been infected with SARS-CoV-2 by testing their blood for antibodies. Nearly 97,000 volunteers from existing health studies took part. Researchers also looked at how long antibodies lasted and what factors influenced infection risk.
Disclaimer
Read more
Show less
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.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for SARS-COV-2 are added.
By submitting, you agree to our Terms of use
Contacts and locations
Show contact details
Enter your email to view the contact information for this study.
By submitting, you agree to our Terms of use
Locations
-
Inserm
Paris, France
Conditions
Explore the condition pages connected to this study.