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When a virus enters your body, you can initiate a cell-mediated response to attack and destroy this virus. At the same time, your body will create memory cells to allow for a faster secondary response if you encounter this same virus a second time. Describe this physiological mechanism.
Answer
The immune system is a complex body system, which acts to protect individuals from pathogens such as bacteria, viruses, fungi, or any other external invader. The system consists of various organs, tissues, and cells. Indeed, when a virus such as a coronavirus enters the body, cell-mediated immunity is triggered. The initial infection phase is called a primary response. During this phase, the immune system through its antibodies recognizes unique molecules on the virus surface. Examples of antibodies include IgG, IgM, IgA, IgE, and IgD (Mayrhofer, 2019). All these antibodies have specific roles in the body. For instance, IgG is responsible for marking pathogens so that they can be recognized by phagocytes and killed. The IgA is often located in mucus membranes such as the buccal cavity, sal...
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