cell-mediated immunity.

antibodies antibody antigen bacteria basophil blood cancer care cell cells chemical circulatory complex cytokines cytotoxic detect disease divide enemy germs health healthcare help helper human immune immunity immunolgy infection inflammation kill killer leukocyte lymph lymphocyte lymphocytes macrophage mediated medical mhc molecule neutrophil organ pathogens phagocytosis presenting protein receptor response secrete specific structure system vector virus white