Table 2.

Phylogenetic characteristics and DNA-based serotypes of tested Escherichia coli isolates.

Number	Serotype*	Virulence marker	Resistance marker
1	O103:H7	hemL, lpfA, tsh, iroN, iss
2	On.d.:H19		blaTEM
3	O103:H7	hemL, lpfA, tsh, iroN, iss
4	O103:H7	lpfA, tsh, iroN, iss
5	On.d.:H38	stx2 (subtype 2a or 2c or 2d), ehxA, espI, espP, saa, iha, subA, iss
6	On.d.:H2	cba, cdtB, cma, cnf1, f17-G, lpfA, iroN, iss
7	On.d.:H31	lpfA, cdtB, cnf1, f17-A, f17-G
8	O103:H7	hemL, lpfA, tsh, iroN, iss	tetA
9	On.d.:H49	hemL, lpfA
10	On.d.:H2	lpfA, cba, cdtB, cma, cnf1, f17-G, iro, iss
11	O103:H7	hemL, lpfA, tsh, iroN, iss	tetA
12	On.d.:Hn.d.	lpfA	blaTEM
13	On.d.:H49	lpfA
14	On.d.:H2	lpfA,
15	On.d.:H2	lpfA,
16	On.d.:H2	hemL, lpfA	blaMOX-CMY9, blaOXA, blaVIM

^*n.d.: not detectable by microarray.