Peripheral CD4 T follicular cells induced by a conjugated pneumococcal vaccine correlate with enhanced opsonophagocytic antibody responses in younger individuals. - Sterrett S; Peng BJ; Burton RL; LaFon DC; Westfall AO; Singh S; Pride M; Anderson AS; Ippolito GC; Schroeder HW Jr; Nahm MH; Krishna Prasad A; et al. (Vaccine, 2020)