Chorea: Involuntary movements that are not rhythmic but appear to spread from one muscle to another. They are a sign of neurological disease. Tic: Sudden contraction of a muscle which is involuntary ...

GAS is an important human pathogen responsible for a number of significant infections but is most commonly associated with pharyngitis. ARF is an autoimmune sequela of streptococcal pharyngitis, when ...

Chorea and hemiballismus are both forms of involuntary movement disorders. Hemiballismus can cause sudden, violent, and flinging motions. Chorea can cause irregular, spontaneous, and nonrepetitive ...