Butantan Institute

This study tests two doses of an experimental H5N8 avian flu vaccine in 700 healthy adults and older adults. The vaccine is inactivated and contains an adjuvant to boost immunity. Researchers will monitor side effects and measure antibody levels to see if the vaccine triggers a p…

This study tests a dengue vaccine in adults aged 60 to 79 and compares their immune response and safety to adults aged 40 to 59. About 997 healthy participants will receive one dose of the Butantan dengue vaccine. The goal is to see if the vaccine works as well in older adults as…