Yellow fever vaccine study for adults with past vaccination
Part of Infections clinical trials.
This trial studies how well the yellow fever vaccine “17D” stimulates the immune system (the body’s germ-fighting response) in adults who were vaccinated with 17D years ago. It may help researchers understand whether a prior vaccination still provides protection and how strong the immune response is.
Summary written for real people, not researchers, by Clin2.
Who can take part
- Be between 20 and under 50 years old at screening
- Have had a yellow fever 17D vaccine at least 8 years ago (with proof like a vaccine card or medical record)
- Be generally healthy and able to follow all study visits and follow-up
- Do not have a current infection or fever (≥38°C/100.4°F) within 3 days before the vaccination day
- Have no history of serious allergy (including allergy related to eggs) to vaccine ingredients
- Avoid certain immune-suppressing medicines and immune-affecting conditions in the past few months, and do not have HIV, hepatitis C, or known immune problems
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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