TABLE 2.

Sequence-based comparison of CPS loci among C. jejuni strains in reference to clone SA isolate IA3902^a

Group	No. of isolates	Yr of isolation	Source	ST(s)	CC(s)	Description
Reference
IA3902	1	2006	Sheep abortion	8	21	Penner serotype HS:1,8; whole genome sequenced
Clone SA
Early-SA	11	1991–1993	Sheep abortion	8	21	CPS locus identical to that of IA3902
Mid-SA	3	1999–2000	Sheep abortion	8	21	CPS locus identical to that of IA3902
Recent-SA	27	2003–2013	Sheep abortion	8	21	CPS locus identical to that of IA3902
Bovine-SA	5	2003–2009	Bovine abortion	8	21	CPS locus identical to that of IA3902
Goat-SA	4	2005–2010	Goat abortion	8	21	CPS locus identical to that of IA3902
Sheep-SA	4	2008	Sheep feces/bile	8	21	CPS locus identical to that of IA3902
Bird-SA	2	2004	Chicken feces	8	21	CPS locus identical to that of IA3902
Human-SA	7	2003–2010	Human enteritis	8	21	CPS locus identical to that of IA3902
Non-clone SA
Early-U.S.	1	1993	Sheep abortion	21	21	Rare; predicted progenitor of clone SA; CPS locus identical to that of IA3902
Early-U.S.	1	1993	Sheep abortion	441	UA	Rare, CPS locus divergent from that of IA3902
Early/mid-U.S.	6	1993–2004	Sheep abortion	50	21	Rare; 4 are identical to IA3902; 2 are divergent from IA3902
Recent-U.S.	10	2003–2010	Sheep abortion	38, 42, 43, 45, 607, 806, 982, 5189	48, 42, 21, 45, 607, 61	CPS locus divergent from that of IA3902
U.K.	9	2003–2008	Sheep abortion from U.K.	21, 42, 45, 50, 206, 227, 270	21, 42, 45, 206, 403	CPS locus divergent from that of IA3902, except ST-50
Other
Cont-1	1	1985	Human enteritis	43	21	NCTC 11168; divergent; nonabortifacient in guinea pigs
Cont-2	1	2006	Sheep feces	61	61	OF48; divergent; nonabortifacient in guinea pigs

^aST, sequence type; CC, clonal complex; UA, unassigned.