TABLE 1.

SeM gene sequence types of isolates from clinical cases of strangles and published literature

SeM gene allele	Source	Outbreak no.	Isolate(s)	Date of isolationc
1	Netherlands	NAa	TW	Not known
1	Sussex	1	6073	11/12/98
1	Ireland	2	SA	12/10/99
2	New York	NA	CF32	1981
2	Canadian	3	303	8/11/99
3	Hampshire	NA	4047	1990
4	Berwickshire	4	0851, 0852	28/01/05
			1458	22/02/05
			2424	29/03/05
			3731	11/05/05
5	Leicestershire	5	7325, 7326	8/12/03
6	Suffolk	6	7060, 7061, 7062, 7063, 7064, 7065, 7066	26/11/03
			7094, 7098, 7099	27/11/03
			7176	1/12/03
			1610b	25/02/04
6	Gwent	7	7329	7/12/03
6	Sussex	8	7331	8/12/03
6	Wiltshire	9	7350, 7352	9/12/03
6	Aberdeenshire	10	1321	16/02/04
6	Kent	11	1351	16/02/04
6	Cheshire	12	7132	26/11/03
6	Hampshire	13	1218	12/02/05
6	Berwickshire	4	1165	10/02/05
			3446	29/04/05
			4289	27/05/05
7	Suffolk	6	1931, 1932	05/03/04
			2077	10/03/04
8	Essex	14	1350	17/12/03
8	Buckinghamshire	NA	A1	1999
9	Hampshire	15	7344	8/12/03
10	Hampshire	16	7140	28/11/03
10	Shetland	17	7171	28/11/03
11	Suffolk	18	7364	10/12/03
12	Suffolk	19	3154	15/04/04
13	Suffolk	19	3155	15/04/04
14	Suffolk	19	3156	15/04/04
15	Australia	20	181063	27/09/99

^aNA, not applicable.

^bIsolate 1610 had gained a 6-amino-acid duplication, SEIAII, at codon 56.

^cDay/month/year.