"How Your Immune System Protects You | Quick Explainer"

The immune system is the body's natural defence mechanism against infections, diseases, and harmful pathogens like bacteria, viruses, and fungi. It consists of a complex network of cells, tissues, and organs that work together to detect and eliminate threats. The immune system is divided into innate immunity, which provides immediate but non-specific defence, and adaptive immunity, which offers long-term, targeted protection. By recognizing and remembering harmful invaders, the immune system helps maintain overall health and prevents future infections.

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