SBI Genotyping on human and bovine isolates of EHEC O157.

aConcatenation of presence of specific bacteriophage at argW, sbcB, wrbA or yehV locations designated by uppercase first letter of each insertion site (A, S, W or Y,) followed by the presence of stx1, stx2a or stx2c denoted by 1,2 or 2c.bThe SBI Genotypes that are significantly over-represented among cattle isolates as compared to human isolates are referred as bovine-biased genotypes (BBG); the SBI Genotypes that show significantly over-representation/similar-representation among human isolates as compared to cattle isolates are referred as clinical genotypes (CG); the SBI genotypes that could not be evaluated for a bovine association due to small numbers (1–4 isolates) are designated “unclassified” genotypes in this manuscript (Fisher’s exact test P≤0.05).cPercent of isolates belonging to most common previously defined SBI genotype [5], [10], [14].