Host association is robust to geographic variation of Campylobacter genotypes.

Genetic attribution of bacterial genotypes has become a major tool in the investigation 2 of the epidemiology of Campylobacteriosis, and has implicated retail chicken meat as 3 the major source of human infection in several countries. To investigate the 4 robustness of this approach to the provenance of the reference data sets used, a 5 collection of 742 Campylobacter jejuni and 261 Campylobacter coli isolated from 6