Two typographical errors appear in the article "Streptococcal Antibody Titers in Sydenham's Chorea" in the December issue of Pediatrics (38:946, 1966).
On page 947, the first paragraph under Materials and Methods should begin: "The antibody titers were determined on the earliest available serum sample on a total of 44 patients with Sydenham's chorea."
The head for the third column of Table II on page 952 should be Category I. The fourth head is the correct Category II.