Rheumatic chorea, also known as Sydenham chorea, is an autoimmune disorder. The immune system in the affected person misrecognized basal ganglia cells as hemolytic streptococci. The basal ganglia is a part of the brain that controls and coordinates body movements. Infection with group A and B hemolytic streptococcus strains triggers a hypersensitive humoral response mediated by antibodies against antigens on basal ganglia cell  Read More