Parameter Tree:
EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > HEALTH ADVISORIES > DISEASE/EPIDEMIC

Definition:
A report pertaining information on the presence and rapid/extensive spread of a pathological condition of a part, organ, or system of an organism resulting from various causes, such as infection, genetic defect, or environmental stress, which is characterized by an identifiable group of signs or symptoms.

Reference:
Center for Disease Control and Prevention