title: The spread of group A streptococci in Egyptian families.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004534:Egypt; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D013290:Streptococcal Infections / Q000235:genetics* / Q000635:transmission; D013297:Streptococcus pyogenes