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Hypercholesterolemia is characterized by elevated levels of cholesterol in blood. One fraction of cholesterol (LDL-cholesterol or "bad" cholesterol) tends to deposit on blood vessel lining (atheromatous plaque) increasing the risk of a heart infarct or stroke. Another fraction called HDL- cholesterol ("good" cholesterol) offers limited protection against plaque formation.

Term of the Week

Hot zone

A hot zone is a section of a facility (sometimes an entire facility or even a city district) where there is a high risk of contamination by patients with an infectious disease. All individuals entering a hot zone must respect appropriate protective measures. By analogy, “cold zone” and “warm zone” are used to refer to areas where there is no infected individual or only individuals suspected of having an infection.