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PCR products from Bcc serotype O1 to O9 strains obtained with primers Mconfor and Mconrev to a conserved region of the wbiI gene. DNA size markers in base pairs are on the left. Lane 1, CIP 8235 (serotype O1); lane 2, CIP 8236 (O2); lane 3, CIP 8237 (O3); lane 4, CIP 8238 (O4); lane 5, CIP 8239 (O5); lane 6, CIP 8240 (O6); lane 7, ATCC 17759 (O7); lane 8, CDC99 (O8); lane 9, CDC86 (O9).
