VACCINATION

This study tests a two-dose pandemic H5N1 (bird flu) vaccine in 120 organ transplant recipients to see if it is safe and triggers a strong immune response. Transplant patients are at high risk for severe flu, but no data exists on how well pandemic flu vaccines work in them. The …

This study tests whether watching personal stories, informational videos, or a mix of both can increase vaccination rates in adults aged 50 and older. Researchers will compare the three approaches among 6,000 participants to find the most effective way to encourage vaccination. T…

This study looks at the best way to encourage parents to vaccinate their 11-17 year old children against HPV. Researchers will show parents either an informational video, a personal story video, or both, and then track how many teens actually get the vaccine. The goal is to find …

This study looks at how a person's sex and gender influence their immune system's reaction to the meningitis B vaccine. Researchers will compare immune responses in transgender and cisgender adults aged 18 to 50. The goal is to better understand biological differences in how vacc…

This study tests different vaccine promotion messages to see which ones catch people's attention and change their attitudes. About 700 adults living in rural New England will view sample social media posts while a webcam tracks their eye movements. Participants answer questions a…

This study aims to understand why the protection from vaccines, like those for COVID-19, decreases over time. Healthy adults aged 18 and older who are scheduled for a new vaccine or booster shot can join. Participants will give blood samples and health updates over one year to he…

This study is looking at how well antibodies in the blood and nose can neutralize the viruses that cause COVID-19 and monkeypox. Researchers will follow 30 adults who have received vaccines or antibody treatments to see how this protection changes over time. The goal is to better…

This study tests whether a digital vaccination record system linked to fingerprints can help more children in Ghana complete their malaria vaccine series and other routine shots. About 4,700 pregnant women and mothers of young children will take part. The system will automaticall…

This study looks at whether a 4-week time-restricted eating (TRE) plan can improve how well older adults respond to flu and COVID-19 vaccines. Researchers will measure changes in immune cell activity and body composition in 24 healthy volunteers aged 60-85. The goal is to underst…