A child who dances when she doesn’t want to. Her hands and…

A child who dances when she doesn’t want to. Her hands and legs move on their own. She cannot stop them, even when she tries. This is not a dance. It is Sydenham chorea, also known as rheumatic chorea or St. Vitus dance. What many families may not know is that it can develop months after a throat infection caused by Group A beta-hemolytic Streptococcus. The body produces antibodies to fight the infection. Through a process called molecular m