TABLE 1.

E. coli strains belonging to ribotype B2₁ or to other ribotypes used for MLST and DNA pathoarray analyses

Ribotype and strain categorya	Sourceb	Country	Phylogenetic group	Serotype	Ribotype/sequence typec
Ribotype B21
S14	NM	Finland	B2	O18:K1	B21/ST29
C5	NM	United States	B2	O18:K1	B21/ST29
S26	NM	United States	B2	O18:K1	B21/ST29
S67	NM	France	B2	O18:K1	B21/ST29
S69	NM	France	B2	O18:K1	B21/ST29
RS218	NM	United States	B2	O18:K1	B21/ST29
S111	NM	United States	B2	O18:K1	B21/ST29
S126	NM	France	B2	O18:K1	B21/ST29
S32	NM	France	B2	O45:K1	B21/ST29
S50	NM	France	B2	O45:K1	B21/ST29
S53	NM	France	B2	O45:K1	B21/ST29
S72	NM	France	B2	O45:K1	B21/ST29
S88	NM	France	B2	O45:K1	B21/ST29
S132	NM	France	B2	O45:K1	B21/ST29
S174	NM	France	B2	O45:K1	B21/ST29
S136	NM	France	B2	O1:K1	B21/ST29
S158	NM	France	B2	O1:K1	B21/ST29
ECOR62	ECOR, P		B2	O2:K1	B21/ST29
HN7	P	France	B2	O2:K1	B21/ST29
HN30	P	France	B2	O2:K1	B21/ST29
HN50	P	France	B2	O2:K1	B21/ST29
NNC28	NC	France	B2	O2:K1	B21/ST29
NNC59	NC	France	B2	O2:K1	B21/ST29
Ribotype non-B21
S114	NM	United States	A	O12:K1	A01/ST171
S122	NM	United States	A	O12:K1	A01/ST171
S82	NM	France	A	ONT:K1	A01/ST171
K-12 (MG1655)		United States	A	O16:K−	A01/ST171
ECOR4	ECOR		A	ONT	A01/ST167
ECOR15	ECOR		A	O25	A01/STND
CFT073	P	United States	B2	O6:K2	B26/ST27
S107	NM	United States	B2	O16:K1	B27/ST304
S108	NM	United States	B2	O16:K1	B28/ST304
ECOR56	ECOR		B2	O6	B26/STND
ECOR59	ECOR		B2	O4	B2J96/STND
ECOR35	ECOR		D	O1	D10/STND
ECOR41	ECOR		D	O7	D04/STND
S16	NM	United States	D	O7:K1	D04/ST301
S39	NM	France	D	O7:K1	D04/ST301
S18	NM	United States	D	O7:K1	D08/ST301

^aFrom ST7 of EcMLST. Origin and ribotype as previously described (2, 5, 6, 7, 9, 24, 31).

^bNM, neonatal meningitis; P, pyelonephritis; NC, neonatal colonization; ECOR, E. coli reference collection.

^cSTND, ST not determined.