TABLE 1.

Examples of acquired ESBL genes in E. coli of animal origin from Europe, the U.S., Latin America, Africa, and Asia

ESBL gene	Geographical origin	Source	Sequence type(s)	Reference
bla CTX-M-1	Denmark	Pig	10, 189, 206, 453, 542, 744, 910, 1406, 1684 2739, 4048, 4052, 4053, 4056,	257
	Sweden	Poultry	57, 135, 155, 219, 602, 752, 1594, 1640	258
	Great Britain	Poultry	4, 10, 57, 88, 155, 371, 1515, 1517, 1518, 1549, 1550	259
	Switzerland	Poultry, cattle, pig	48, 83, 305, 525, 528, 529, 533, 534, 536, 540	260
	The Netherlands	Veal calves	10, 58, 88, 117, 162, 224, 354, 448, 617, 648, 744, 973	21
	France	Dairy cattle	23, 58	13
	Germany	Dairy cattle	10, 117, 540, 1431, 5447	14
	Germany	Swine, cattle, poultry, horse	10, 23, 83, 100, 131, 167, 362, 453, 648, 925, 973, 1684, 2699	43
	Germany	Dog	10, 23, 69, 160, 224	28
	U.S.	Dog, cat	23, 38, 44, 68, 69, 131, 167, 405, 410, 443, 648, 1011, 1088, 5174, 5206, 5220	261
bla CTX-M-14	The Netherlands	Veal calves	10, 57, 952	21
	France	Dairy cattle	10, 23, 45, 58	13
	China	Pig, poultry	10, 155, 206, 224, 359, 405, 602, 648, 2929, 2930, 2962	262
	China	Dog	10, 38, 104, 131, 167, 405, 648, 146, 3630	97
bla CTX-M-15	UK	Poultry	57, 156	259
	UK	Dog	131, 410, 1284, 2348, 4184	99
	The Netherlands	Veal calves	58, 59, 88, 361, 410, 648	21
	Germany	Livestock	10, 88, 90, 167, 410, 617, 648	263
	Germany	Dairy cattle	10, 361, 1508	14
	Germany, Denmark, Spain, France, the Netherlands	Dog, horse	131	264
	Germany, Italy	Dog, cat, cattle, horse	648	96
	Germany	Dog	410, 3018	28
	U.S.	Dog, cat	23, 38, 44, 68, 69, 131, 167, 405, 410, 443, 617, 648, 1011, 1088, 5174, 5206, 5220	261
	Mexico	Dog	410, 617	138
	China	Dog	10, 38, 44, 69, 73, 75, 131, 302, 405, 648, 1700, 2375	97
	Nigeria	Poultry	10, 405	221
bla SHV-12	Spain, Germany	Wild bird, dog, poultry	23, 57, 117, 155, 362, 371, 453, 616, 1564, 2001	39
	China	Dog	10, 75, 131, 167, 405, 648, 2375, 3058	97