CD4 and viral infectious disease: The assessment of MV-stimulated miRNA expression in purified B and CD4+ T cells from vaccinees revealed several pathways/biological processes targeted by miRNAs in both cell types (e.g., transcriptional regulation, TGF-beta signaling pathway, epidermal and fibroblast growth factor receptor-signaling pathways, neurotrophin TRK receptor-signaling pathway, extracellular matrix (ECM)-receptor interactions, and viral infection processes).