Which Enhanced Influenza Vaccine Has the Greatest Immunogenicity in Long-Term Care Residents: The Adjuvanted or the High-Dose Formulation?

This study compares enhanced influenza vaccines recommended for older adults, adjuvanted flu vaccine (aTIV, FLUAD) vs high-dose flu vaccine (HD-IIV3, FLUZONE HD) to determine if they met noninferiority standards for older long-term care facility (LTCF) residents.