VACCINATION

This study tests a two-dose pandemic H5N1 (bird flu) vaccine in 120 organ transplant recipients to see if it is safe and produces a strong immune response. Transplant patients are especially vulnerable to severe flu, and there is no data yet on how well this vaccine works in them…

This study in Chad and Niger tests whether giving a small, nutrient-packed food supplement (SQ-LNS) to children aged 6 to 11 months can encourage families to complete routine vaccinations. Around 20,000 children will receive the supplement until they are 18 months old, and resear…

This study looks at whether watching personal stories about HPV, combined with informational videos, can encourage adults aged 50 and older to get vaccinated. Researchers will compare groups that see only informational videos, only personal stories, or both. The goal is to find t…

This study tests whether showing parents of unvaccinated 11-17 year olds a combination of personal HPV stories and informational videos increases the number of teens who get the HPV vaccine. Over 1,100 parents will be randomly assigned to watch either an informational video, a pe…

This study looks at whether sleep habits of 11-12 year olds affect their immune response to the meningococcal vaccine (MCV4). About 66 healthy teens will wear a sleep tracker and keep their normal sleep schedule for 5 weeks. Researchers will measure antibody levels after vaccinat…

This study aims to understand why the protection from vaccines like those for COVID-19 fades over time. Researchers will follow 1,200 healthy adults for one year, collecting blood samples and health updates after they receive a vaccine or booster in their community. The goal is t…

This study looks at how a person's sex and gender might change 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 why men and women often respond…

This study uses remote eye-tracking to see which vaccine promotion messages grab attention best in rural New England adults. Participants view sample social media posts from experts or influencers while their eye movements are tracked. The goal is to find the most effective messa…

This study will follow 30 adults who have received vaccines or antibody treatments for COVID-19 or monkeypox. Researchers will take blood and optional nasal swabs over time to measure how well the body's antibodies neutralize these viruses. The goal is to better understand how lo…

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 tests whether eating all meals within an 8-hour window (before 10 AM) for four weeks can improve how well older adults respond to seasonal flu and COVID-19 vaccines. Researchers will measure changes in immune cell activity and body composition in 24 healthy volunteers …