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Study identifier: NCT06718127 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Description of the Immune Response to Yellow Fever Vaccination

Condition: Immunization · Infections  ·  Sponsor: Institut Pasteur

PhaseNA
Planned participants38
Who can joinAll sexes, 18 Years to 65 Years
Healthy volunteersYes

About this study

Vaccine protection depends on a specific adaptive immune memory. However, a little-explored aspect of certain live vaccines may provide beneficial, non-specific protection against infections or pathogens other than the one from which the vaccine is derived. This is the concept of innate immune memory or " trained immunity", which differs from adaptive memory in its non-specificity. Innate immune memory is triggered by exposure to immunostimulants, and offers protection against unrelated pathogenic threats for several months or even years. The project aims to carry out an exploratory study to observe, in the context of current practice, the immune response obtained after a subunit and a live attenuated vaccine

This description comes directly from the study's public registry record.

Talk to the study team

Jessica Quintin, Dr  ·  144389454  ·  jessica.quintin@pasteur.fr

Sandrine Fernandes Pellerin  ·  145688179  ·  sandrine.fernandes-pellerin@pasteur.fr

Always discuss trial participation with your own doctor first.

Locations (1)

Centre Médical de l'Institut PasteurParis, FranceRecruiting

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Source record: clinicaltrials.gov/study/NCT06718127