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DT, Mykytczuk OL, Roberts MJ, Valencia CA, Farber JM, Nash JHE: Large-scale comparative genomics meta-analysis of Campylobacter jejuni isolates reveals low level of genome plasticity. J Clin Microbiol 2004, 42:4566–4576.PubMedCrossRef 26. Malik-Kale P, Raphael BH, Parker CT, Joens LA, Klena JD, Quiñones B, Keech AM, Konkel ME: Characterization of genetically matched isolates of Campylobacter jejuni reveals that mutations in genes involved in flagellar biosynthesis alter the organism’s virulence potential. Appl Environ Microbiol 2007, 73:3123–3136.PubMedCrossRef Competing interests The authors declare no competing financial interests. Authors’ contributions Conceived and designed the work: CGC, MWG. Performed the laboratory experiments: CGC, CCRG, JM, DMT. Performed the analysis, including statistical analysis: CGC. Wrote the manuscript: CGC. Collected, collated, and provided patient and source data associated with the sentinel site: FP, BM.