[Sydenham's chorea, rare but not eradicated].

Sydenham's Chorea (SC), a major manifestation of acute Rheumatic Fever (RF), is a nonsuppurative sequelae of group A streptococcal infection. RF is a significant public health problem in developing countries, and SC continues to afflict large numbers of children throughout the world. Although the incidence of RF is low in industrialized countries, SC does occur. We recently treated two children with SC. Both children showed the typical features of SC, which are choreatic movements, hypotonia and emotional lability. We describe the course of SC in the two children.