Files in this Data Supplement:

• Supplemental file 1 - The O-antigen gene clusters of E. coli O141, O147, O149, O138, O139, O45, O157, and O8 (Fig. S1); agarose gel electrophoresis of multiplex PCR products from O-antigen-specific genes or virulence factor genes (Fig. S2); schematic diagram of the microarray, showing positions of immobilized probes spotted within a single array of the six-array glass slides (Fig. S3); hybridization patterns for representative clinical isolates (Fig. S4)
  MS Word document, 4.4MB.
• Supplemental file 2 - Characteristics of the ORFs in the E. coli O141 (Table S1), O147 (Tables S2), and O149 (Table S3) O-antigen gene clusters; all strains used in this study (Table S4); detection of virulence genes by conventional PCR (Table S5); detection results for 17 porcine fecal samples (Table S6)
  MS Word document, 462K.