Table 1. Summary of gene content for S. enterica and E. coli isolates analysed in this study.

Section	Description	S. enterica	E. coli
Number of isolates		1682	943
Core genes	99 %≤strains≤100 %	3175	1328
Accessory genes	0 %≤strains≤99 %	20 132	91 087
Soft core genes	95 %≤strains<99 %	236	815
Shell genes	15 %≤strains<95 %	2098	3516
Cloud genes	0 %≤strains<15 %	17 748	86 746
Total genes	0 %≤strains≤100 %	23 307	92 415