Temporal Association of the Appearance of Mucoid Strains of<i>Streptococcus Pyogenes</i>With a Continuing High Incidence of Rheumatic Fever in Utah

Abstract

The Utah experience with the resurgence of RF in a civilian population during the last decade and a half of the 20th century confirmed the temporal association of mucoid strains of S pyogenes, primarily M-type 18, with a high incidence of RF.