Dataset containing genotyping results and QC (table S1), Source-overlap by sublineage (table S2), BactDating results (table S3), Genomes included in BactDating analyses (table S4), Chi-squared tests of AMR presence by niche (table S5), GWAS results (table S6), Binomial tests of SLs, KLs and OLs by human vs non-human sources (table S7), and Genome accessions and metadata (table S8).