[Yearly epidemiological survey of group A-hemolytic streptococci isolated from throat of healthy children. Part II Analysis by classroom and sibling (author's transl)].
D002648:Child; D006801:Humans; D010614:Pharynx / Q000382:microbiology*; D012541:Scarlet Fever / Q000235:genetics* / Q000382:microbiology; D012621:Seasons; D013297:Streptococcus pyogenes / Q000302:isolation & purification*