Epidemiology of streptococcal infections in rheumatic and non-rheumatic families. I. Objectives, plan of study, and comparative frequency of streptococcal isolations.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008396:Maryland; D011159:Population Surveillance; D012213:Rheumatic Fever / Q000235:genetics*; D013290:Streptococcal Infections / Q000150:complications / Q000453:epidemiology*; D013291:Streptococcus / Q000302:isolation & purification*