French study to reveal true COVID-19 infection rates during lockdown easing

NCT ID NCT04429594

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is following 1,000 people in the Alpes-Maritimes region of France to see how many were infected with the coronavirus during the deconfinement period. Researchers are using blood tests to measure immune responses and will also look at how air pollution might affect the immune system. The goal is to better understand the spread of the virus and its impact on health.

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 provide a clearer picture of how many people were infected with COVID-19 and how their immune systems responded, helping guide public health decisions.

What could go wrong

This is an observational study, not a treatment trial. It cannot prove cause and effect, and results may be influenced by factors like seasonality or changes in behavior.

Disclaimer Read more

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.

Coronavinae infectious disease Coronaviridae infectious disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

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

Locations

  • University Nice Hospital

    RECRUITING

    Nice, 06000, France

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

    Contact

    Contact

    Contact