How Live Attenuated Vaccines stimulates immunity?
Attached to MHC class II antigens, The APCs recirculate and display fragments of the processed antigen on their cell surface. This complex of processed foreign antigen peptide and host MHC class II antigens form an area of the precise signal, with which APCs (along with the MHC peptide complex) triggers the activation of T-helper lymphocytes. Once they replicate within the host live, attenuated vaccines stimulate protective immune responses. Digested by scavenger cells, the antigen-presenting cells (APCs) that circulate throughout the body, the host are released into the extracellular space surrounding the infected cells and the viral proteins produced within and are then acquired, internalized . B cells, which work together to expand immune response, these APCs include macrophages, dendritic cells. These complexes together are recognized by a second class of T cells, in conjunction with other stimulation by APCs and production of cytokine-stimulated T cells, killer or cytotoxic c...