Flu vaccine under the microscope: does it protect hospitalized patients?
NCT ID NCT01764152
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This completed study looked at how well the seasonal flu vaccine worked during the 2012-2013 flu season in adults who were hospitalized with flu-like symptoms. Researchers compared vaccinated and unvaccinated patients across a network of French hospitals to see if the vaccine reduced confirmed flu cases. The goal was to measure vaccine effectiveness in a real-world hospital setting.
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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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Institut National de la Santé Et de la Recherche Médicale
Paris, 75654, France