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 compares three ways to encourage HPV vaccination: showing parents an informational video, a personal story from someone with HPV, or both together. Researchers will track which group has the most parents get their 11-17 year old children vaccinated. The goal is to find…

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 aims to find the best way to encourage older adults (50+) to get recommended vaccines. Researchers will compare three approaches: showing only informational videos, only personal story videos, or a mix of both. The goal is to see which method leads to more people getti…

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 looks at how well antibodies in the blood and nose can neutralize SARS-CoV-2 and monkeypox virus over time. Researchers will follow 30 adults who have received vaccines or monoclonal antibodies for these diseases. The goal is to understand how long protection lasts and…

This study looks at whether eating only during a specific time window each day (time-restricted eating) can improve how well older adults' immune systems respond to flu and COVID-19 vaccines. Researchers will measure changes in immune cell activity and body composition in 24 heal…

This study aims to find the most effective ways to promote vaccines to people living in rural New England. About 700 adults will view sample social media messages while their eye movements are tracked remotely via webcam. Participants will then answer questions about the messages…

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 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 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…