Localized reaction of the body tissues to invasion by pathogenic micro-organisms, or to trauma by wounds, burns or chemicals, which serves to destroy, dilute, or wall off both the injurious agent and the injured tissue.
It may be acute or chronic and is characterized by some or all five cardinal signs: redness, swelling, pain, a The specific characteristics that all participants must have to enter a clinical trial or study group.
See: Exclusion criteria.






