Checking long-lasting yellow fever immunity years after vaccination
Part of Immune system & allergy, Infections clinical trials.
This study looks at how well the body’s protection against yellow fever lasts 10 years after the first vaccine. It compares people living with HIV (who are on stable treatment) with people who are HIV negative, to learn whether immunity stays strong over time.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You must be willing to join a 10-year follow-up study and be monitored by the study team
- If you have HIV: you must have been on HIV treatment for at least 1 year without changes in the last 3 months
- If you have HIV: your CD4 count must be above 350 and your viral load must be very low (below 50 copies/mL) for at least 6 months
- If you do not have HIV: you must be recruited from the travelers’ clinic study groups
- You must be able to give informed consent and agree to the study rules
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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