The official definition of the immune system according to dictionary.com is a diffuse, complex network of interacting cells, cell products, and cell-forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system includes the thymus, spleen, lymph nodes and lymph tissue, stem cells, white blood cells, antibodies, and lymphokines (The Definition of Immune System). When viruses or bacteria gets into the body, the first thing that happens to them in the immune system is they hit a wall of macrophages (white blood cells), which are referred to as “big eaters” -- this is because these macrophages literally engulf and eat as many of these unusual viruses as they can (Alan Cantwell Jr., M.D.). But how do the macrophages know which cells are good, and which cells carry viruses within them? According to Understanding Vaccinations -What They Are and How They Work, each cell and microbe in the body is covered in molecules, and each individual person’s molecules exhibits a distinctive pattern, therefore if a peculiar molecule comes into the body and it’s pattern does not match up, the macrophages immediately remove it. Because the immune system works in such a way, scientists had to come up with a way that vaccinations would somehow work together alongside the immune system, in hopes of trying to put a stop to the deadly diseases occurring in the
The official definition of the immune system according to dictionary.com is a diffuse, complex network of interacting cells, cell products, and cell-forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system includes the thymus, spleen, lymph nodes and lymph tissue, stem cells, white blood cells, antibodies, and lymphokines (The Definition of Immune System). When viruses or bacteria gets into the body, the first thing that happens to them in the immune system is they hit a wall of macrophages (white blood cells), which are referred to as “big eaters” -- this is because these macrophages literally engulf and eat as many of these unusual viruses as they can (Alan Cantwell Jr., M.D.). But how do the macrophages know which cells are good, and which cells carry viruses within them? According to Understanding Vaccinations -What They Are and How They Work, each cell and microbe in the body is covered in molecules, and each individual person’s molecules exhibits a distinctive pattern, therefore if a peculiar molecule comes into the body and it’s pattern does not match up, the macrophages immediately remove it. Because the immune system works in such a way, scientists had to come up with a way that vaccinations would somehow work together alongside the immune system, in hopes of trying to put a stop to the deadly diseases occurring in the