TABLE 1.
International O157 STEC strains used in the analysis.
| Isolate | Isolation year | Location | Source | Obtained from | Accession number |
| 155 | 2012 | United Kingdom | Human | NCBI GenBank | CP018237.1 |
| 272 | 2013 | United Kingdom | Human | NCBI GenBank | CP018239.1 |
| 319 | 2012 | United Kingdom | Human | NCBI GenBank | CP018241.1 |
| 350 | 2011 | United Kingdom | Human | NCBI GenBank | CP018243.1 |
| EC4115 | 2006 | United States | Human | NCBI GenBank | CP001164.1 |
| EDL933 | 1982 | United States | Ground beef | NCBI GenBank | CP008957.1 |
| FRIK2069 | 2011 | United States | Cattle | NCBI GenBank | CP015846.1 |
| FRIK944 | 2014 | United States | Cattle | NCBI GenBank | CP016625.1 |
| JEONG-1266 | 2013 | United States | Cattle | NCBI GenBank | CP014314.1 |
| M73607 | 2009 | Japan origin | Human | This study | SRR12398594 |
| M74957 | 2014 | New Zealand origin | Human | (Pintara et al., 2018) | SAMEA104371134 |
| M76457 | 2012 | Denmark origin | Human | This study | SRR12398593 |
| M76948 | 2013 | Turkey origin | Human | (Pintara et al., 2018) | SAMEA104371139 |
| M77548 | 2015 | Unknown travel history outside of Australia | Human | (Pintara et al., 2018) | SAMEA104371140 |
| M78364 | 2015 | Travelers diarrhea outside of Australia | Human | This study | SRR12398592 |
| Sakai | 1996 | Japan | Human | NCBI GenBank | BA000007.3 |
| SS17 | 2014? | United States | Cattle | NCBI GenBank | CP008805.1 |
| SS52 | 2014? | United States | Cattle | NCBI GenBank | CP010304.1 |
| TW14359 | 2006 | United States | Human | NCBI GenBank | CP001368.1 |
| Xuzhou21 | 1999 | China | Human | NCBI GenBank | CP001925.1 |