[Studies on pharyngeal hemolytic streptococci in a class-room outbreak of scarlet fever].
D002648:Child; D004196:Disease Outbreaks / Q000453:epidemiology / Q000382:microbiology*; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D010614:Pharynx / Q000382:microbiology*; D012541:Scarlet Fever / Q000453:epidemiology / Q000382:microbiology*; D013297:Streptococcus pyogenes / Q000302:isolation & purification*