The cells of our immune system are the guardians of the human body, forever contending with various unwelcome intruders from viruses to drugs to lowly yet painful splinters. They are as industrious as they are indispensable.
Each cell of the immune system has its own objective, its own do-or-die mission. Some of our guardians devour bacteria and fungi in a process known as phagocytosis. Others produce carefully tailored antibodies earmarked for the destruction of pathogenic organisms. A f