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[Inflammation and infection: cellular and biochemical processes].

The terms inflammation and infection are often used interchangeably. Technically this is incorrect. Inflammation is defined as the body's response to a potentially damaging stimulus. Infection involves tissue invasion by microorganisms. An inflammatory reaction will be provoked when infection occurs in an otherwise healthy patient. Inflammation can be recognized clinically by 5 cardinal signs: rubor (redness), calor (warmth), tumor (swelling), dolor (pain), and functio laesa (loss of function). These clinical signs can be explained by the biochemical and cellular processes activated during the