An early-stage clinical trial is evaluating two licensed seasonal influenza vaccines, administered with or without novel adjuvants, for their safety and ability to generate an immune response. Adjuvants are compounds added to vaccines to induce stronger and longer-lasting immune responses. The Phase 1 study is enrolling healthy adult volunteers at eight sites across the United States. The trial is funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health.



