Figure 2. Repetitive-element sequence–based polymerase chain reaction analysis of genomic DNA from various Escherichia coli strains using REP (A) and ERIC (B) primers. Lanes 1 and 2, O153:H7 DNA (rabbit isolates 02-3446 and 02-3301, respectively); Lanes 3–5, O153:H- DNA (rabbit isolates 01-3014, 02-3050, and 02-3300); Lanes 6 and 7, O153:H- DNA (human isolates, ECRC 99-1808 and 99-1818); Lane 8, no DNA; Lanes 9 and 10, O145:H7 DNA (rabbit isolates 02-3448 and 02-3205); Lanes 11–13, O145:H- DNA (rabbit isolates 02-3750, 02-3282, and 02-3055); Lane 14, O145:H- DNA (human isolate, ECRC 95.1167); Lane 15, O145:H- DNA (bovine isolate, ECRC 95.0187); Lane 16, E. coli isolate of unknown O serotype (03-192) from DB rabbit 02-177; M, 1-kb plus ladder.
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