Global study tracks COVID immunity in healthcare heroes
NCT ID NCT05534009
First seen Nov 01, 2025 · Last updated May 24, 2026 · Updated 35 times
Summary
This study follows 1800 healthcare workers from 8 countries to learn how COVID-19 infection and vaccination affect their immune systems. Researchers will analyze blood samples and health data to understand how different virus variants escape natural or vaccine-induced protection. The goal is to gather knowledge, not to test a new treatment.
Disclaimer
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This is a summary of
the original study
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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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Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Azienda Socio-Sanitaria Territoriale Santi Paolo e Carlo
RECRUITINGMilan, Italy
Contact Phone: •••-•••-•••• Email: •••••@•••••
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Bach Mai Hospital
RECRUITINGHanoi, Vietnam
Contact Email: •••••@•••••
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Centro Hospitalar de Lisboa Ocidental
RECRUITINGLisbon, Portugal
Contact Phone: •••-•••-•••• Email: •••••@•••••
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Heinrich Heine university
RECRUITINGDüsseldorf, Germany
Contact Email: •••••@•••••
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Hospital Juan Ghaham Casasus
RECRUITINGVillahermosa, Mexico
Contact Phone: •••-•••-•••• Email: •••••@•••••
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Ieo Istituto Europeo Di Oncologia
RECRUITINGMilan, Italy
Contact Email: •••••@•••••
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Viesoji Istaiga Vilniaus Uiversiteto Ligoninė Santaros klinikos
RECRUITINGVilnius, Lithuania
Contact Email: •••••@•••••
Conditions
Explore the condition pages connected to this study.