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  1. The immune system is a network of biological systems that protects an organism from diseases. It detects and responds to a wide variety of pathogens, from viruses to parasitic worms, as well as cancer cells and objects such as wood splinters, distinguishing them from the organism's own healthy tissue.

  2. Oct 20, 2023 · Learn how your immune system protects you from germs and other invaders, and what can go wrong with it. Find out about the organs, cells, proteins and chemicals that make up your immune system, and the conditions that affect it.

  3. Learn how the immune system defends the body against foreign or dangerous invaders, such as microorganisms, parasites, and cancer cells. Find out the components, lines of defense, and disorders of the immune system.

  4. 1 day ago · Learn about the immune system, the complex group of defense responses that helps repel disease-causing organisms and abnormal cells. Explore the mechanisms of nonspecific, innate immunity and specific, acquired immunity, and how they evolved and function.

  5. Mar 28, 2024 · Learn how to improve your immune system with healthy lifestyle habits, such as eating fruits and vegetables, exercising, and getting vaccinated. Find out why boosting your immune system is not a simple or scientifically proven concept.

  6. Learn about the immune system, its parts, functions and disorders. Find out how the immune system fights infection, deals with allergies and autoimmune diseases, and how immunisation works.

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