Antibody Measurement
BLOOD, SEPARATION, INFLUENZA
Blood was collected in serum separation tubes from participants in the LAIV group, for study end points on influenza vaccine immunogenicity [Enzyme-linked immunosorbent assay (ELISA) optimization was performed to determine optimal To measure antibody titers to the additional vaccine antigens group A carbohydrate (GAC) and streptolysin O (SLO), an optimized 4-plex (GAC, SLO, SpyCEP, SpyAD) serology assay using the Luminex platform was performed on all available sera using a described protocol [