Occurrence and significance of hemolytic streptococci groups b-u in human infectious disease.
245 strains of hemolytic streptococci, isolated from 225 patients with infectious diseasses, were grouped serologically according to Lancefield. About 40% belonged to group B and half of them were found in the genito-urinary tract. Another 40% belonged to the groups C and G, half of them being found in the respiratory tract and often as the only potentially pathogenic organism. About 10% of the isolates belonged to other of the groups E to T, including M streptococci, and were found under similar circumstances as the C and G isolates. The last 10% could not be referred to any of the groups A-U. In 4 cases group B streptococci were found as the only potentially pathogenic organism in typical erysipelas, and in 4 cases of septicemia the only bacterial finding from blood was a streptococcus of the groups B, C or G. In these cases, as in most others in which an etiological significance could be ascribed to steptococci of other groups than A, the patient was in a bad general condition, due to very high age, agranulocytosis, ethylism or narcomania.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000382:microbiology; D012189:Retrospective Studies; D012737:Sex Factors; D012883:Skin Ulcer / Q000382:microbiology; D013290:Streptococcal Infections / Q000382:microbiology*; D014570:Urologic Diseases / Q000382:microbiology