TABLE 4.

SNP comparisons of pre- and post-travel non-CTX-M-producing E. coli for volunteers with the same MLSTs before and after travel

Volunteer	Isolate	Sample collection pointa (days pre- or post-travel)	MLST	Phylogenetic group
1	1_1a	10 pre	131b	B2
	1_1b	10 pre	1315	B2
	1_1c	10 pre	1311	B2
	1_1d	10 pre	13119	B2
	1_2a	5 pre	13117	B2
	1_2b	5 pre	13118	B2
	1_2c	5 pre	1316	B2
	1_e_1	122 post	1313	B2
	1_e_2	122 post	1316	B2
	1_e_3	122 post	1312	B2
6	6_1c	42 pre	7317	B2
	6_1e	42 pre	7314	B2
	6_2a	28 pre	7377	B2
	6_2b	28 pre	73b	B2
	6_2c	28 pre	7314	B2
	6_2d	28 pre	7322	B2
	6_3a	1 pre	7323	B2
	6_3b	1 pre	7317	B2
	6_3c	1 pre	7327	B2
	6_3d	1 pre	7317	B2
	6_3e	1 pre	7320	B2
	6_3f	1 pre	7388	B2
	6c2	42 post	731	B2
	6c4	42 post	7330	B2
	6d1	180 post	7324	B2
	6d2	180 post	7324	B2
	6d3	180 post	735	B2
	6d4	180 post	7320	B2
7	7_1a	60 pre	10b	A
	7_1b	60 pre	102	A
	7_1c	60 pre	102	A
	7_1d	60 pre	101	A
	7_1e	60 pre	100	A
	7_1f	60 pre	105	A
	7_3b	7 pre	102	A
	7_3c	7 pre	103	A
	7_3d	7 pre	104	A
	7_3e	7 pre	102	A
	7_3f	7 pre	102	A
	7a1	5 post	1018143	A
	7b1	10 post	1018141	A
	7b2	10 post	1018124	A
8	8.2a	1 pre	10b	A
	8.2b	1 pre	105	A
	8.2d	1 pre	102	A
	8.2e	1 pre	1017	A
	8.2f	1 pre	101	A
	8b2	16 post	1017093	A
	8b3	16 post	1017084	A
	8b4	16 post	1017085	A
	8c1	40 post	1017085	A
	8c2	40 post	1017087	A
	8c3	40 post	1017084	A
	8c4	40 post	1017088	A
	8d1	58 post	1017084	A
	8d2	58 post	1013306	A
	8d4	58 post	1013307	A
	8d5	58 post	1017084	A
15	15_1c	28 pre	10b	A
	15_1d	28 pre	106	A
	15_2c	14 pre	1010	A
	15_2d	14 pre	1054	A
	15c1	150 post	109	A
	15c2	150 post	107	A
	15c3	150 post	1023	A
	15c4	150 post	1014	A
17	17_2a	3 pre	131b	B2
	17_2b	3 pre	13118	B2
	17_2c	3 pre	13112	B2
	17_2d	3 pre	13111	B2
	17_2e	3 pre	13127	B2
	17_2f	3 pre	1318	B2
	17c1	84 post	13116	B2
	17c2	84 post	13129	B2
	17c3	84 post	13117	B2
	17c4	84 post	13145	B2
20	20_1b	10 pre	1013568	A
	20_1c	10 pre	1013553	A
	20_2a	4 pre	1014956	A
	20bpp	42 post	10b	A
	20f1	120 post	1010	A
	20g1	183 post	1024	A
	20g2	183 post	109	A
	20g3	183 post	109	A
	20g4	183 post	1031	A

^aSample collection point includes only fecal samples where the E. coli sequence type displayed for that volunteer was detected. For the full list of isolates, see Table S1. Boldface indicates pre-travel fecal samples, and italic indicates post-travel.

^bReference strain for SNP comparisons for any given volunteer. SNPs are displayed as superscripts after the ST.