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Rep-PCR dendrogram and simulated electrophoresis. Strains are numbered 1 to 24, and fingerprint types (P) are color coded. Internal control, S. agalactiae meningitis isolate corresponding to keys 1 and 2; S. dysgalactiae subsp. equisimilis carrier isolate, key 24; S. zooepidemicus (outbreak strains) corresponding to keys 4 through 22; S. agalactiae isolated from milk, key 23, and S. pyogenes emm type 3 oropharynx of food handler, key 3. OP, oropharynx; FH, food handler.
