“Cell-mediated immunity entails the system of white blood cells that attack if you unfortunately pick up a virus. And because you’ve never encountered this virus before, the virus will infect, or get inside, different bodily cells. For instance, it will infect the cells of your respiratory tract. Now your white blood cells attack these infected cells, devour them and spit them out. This whole process releases substances called cytokines, which produce the ill effects you feel when you get sick.
What we call being sick—fever, flu, mucus, cough, rash, etcetera is because of our cell-mediated immune system. The virus does not create the yucky symptoms you experience; they are compliments of your immune system. This is demonstrated clearly when you suppress somebody’s cell-mediated immune system with steroid drugs like prednisone and then infect them with a virus. They don’t get ‘sick.’ They might even die from the infection, but they…
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