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RSS-PCR patterns of representative non-O157:H7 strains among KSU strains. Lanes 1 and 15 are 1-kb DNA ladders (Gibco-BRL). Lanes 2 and 3 represent E. coli O157:H7 patterns A and A1, respectively. Lanes 4 to 13 represent non-O157:H7 patterns B to K, respectively. Lane 14 is a negative control (no template DNA).
