title: Primary prevention of rheumatic fever in Jerusalem schoolchildren. 2. Identification of beta-hemolytic streptococci.
mesh_terms: D002648:Child; D005455:Fluorescent Antibody Technique; D006801:Humans; D008722:Methods; D010614:Pharynx / Q000382:microbiology*; D012141:Respiratory Tract Infections / Q000382:microbiology*; D012213:Rheumatic Fever / Q000517:prevention & control*; D013297:Streptococcus pyogenes / Q000302:isolation & purification