The immune system plays a vital role in defending the body against infections, including viruses like COVID-19. When the body is exposed to a pathogen, the immune system activates defense mechanisms to fight it off. COVID-19 specifically targets the respiratory system, but it can also affect other parts of the body, leading to a wide range of symptoms, including fever, cough, fatigue, and loss of taste or smell. In some cases, COVID-19 can trigger an overactive immune response, leading to inflammation, organ damage, and even severe complications.
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