Understanding long-term immunity after yellow fever vaccination

Long Term Immunity Following Yellow Fever Vaccination

['FUNDING_R01'] · OREGON HEALTH & SCIENCE UNIVERSITY · NIH-10804598

This study is looking at how well the yellow fever vaccine works over time, especially for people who might not have enough antibodies years after getting the shot, to help decide if booster shots are needed for better protection.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorOREGON HEALTH & SCIENCE UNIVERSITY (nih funded)
Locations1 site (PORTLAND, UNITED STATES)
Trial IDNIH-10804598 on ClinicalTrials.gov

What this research studies

This research investigates how the yellow fever vaccine (17D) induces and maintains immunity in individuals over time. It focuses on the presence of neutralizing antibodies in vaccinated individuals, particularly those who may not have detectable antibodies more than ten years after vaccination. By analyzing data from various populations, the study aims to clarify the effectiveness of the vaccine and the need for booster shots. This could help inform vaccination strategies and public health policies in regions affected by yellow fever.

Who could benefit from this research

Good fit: Ideal candidates for this research are individuals who have received the yellow fever vaccine and are over 21 years old.

Not a fit: Patients who have never been vaccinated against yellow fever or those living in non-endemic areas without exposure to the virus may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to improved vaccination strategies and better protection against yellow fever outbreaks.

How similar studies have performed: Previous research has shown varying levels of immunity in vaccinated individuals, indicating that this area of study is both relevant and necessary for understanding vaccine efficacy.

Where this research is happening

PORTLAND, UNITED STATES

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.

View on NIH RePORTER →

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.