March 7, 2021 by Wendi 0 Immune System, Lecture VideosAdaptive Immune Response This video describes how the adaptive/ acquired immune response is… Read more antibody antigen antigen presentation B cell receptor B cells bone marrow covid evolution cytotoxic T cells helper T cells HLA IL-1 IL-2 immunoglobulin lymph node major histocompatibility complex memory cells MHC plasma cells regulatory T cells spleen T cell receptor T cells thymus tolerance October 29, 2020 by Wendi 3 Covid-19, Health Articles, Immune systemHow does immunity work? How does immunity work? There has been a lot of… Read more antibodies COVID immunity long-term immunity memory cells 2/2