Final answer:
Chorea is a symptom of rheumatic fever characterized by involuntary movements that can affect the limbs, face, and trunk, which can be resolved with treatment.
Step-by-step explanation:
Chorea is a symptom of rheumatic fever, which is an immune-mediated disease caused by a cross-reaction between patient antibodies and bacterial surface proteins. It is characterized by involuntary movements that can affect the limbs, face, and trunk. Chorea is reversible and usually resolves with treatment, but it can be a sign of ongoing inflammation in the body.