Explainer: The body’s immune system
19 May 2024
Your immune system is probably something you ignore, at least until you get ill. Then you realize how important the immune system is.
It’s all the various organs, cells and proteins spread throughout the body that protect us from bacteria, viruses and other potentially harmful invaders.
Cells of the immune system can be split into two closely related military squads: innate and adaptive.
Troops belonging to the first — innate — patrol the body to detect intruders, such as bacteria and viruses. These troops don’t trust anyone, not even their own body’s cells. But they don’t have to fend off bad...
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