Reference Terms
from Wikipedia, the free encyclopedia
Immune system
The immune system is the system of specialized cells and organs that protect an organism from outside biological influences. (Though in a broad sense, almost every organ has a protective function - for example, the tight seal of the skin or the acidic environment of the stomach.) When the immune system is functioning properly, it protects the body against bacteria and viral infections, destroying cancer cells and foreign substances.
Note: The above text is excerpted from the Wikipedia article "Immune system", which has been released under the GNU Free Documentation License.
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March 31, 2025
Mar. 19, 2025 — An experimental drug appears to reduce the risk of Alzheimer's-related dementia in people destined to develop the disease in their 30s, 40s or 50s, according to the results of a new study. The findings suggest -- for the first time in a clinical ...
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