Table 1.

Origin and serotype of isolates used as positive controls

Strain	Serotype	Origin	Target gene	Reference/source
3653/97	O78:H−	Patient with diarrhea	stx1c	77
7139/96	O8:H−	Asymptomatic carrier	stx1d	42
E32511	O157:H−	Patient with HC	stx2c	34
EH250	ONT:H12	Patient with diarrhea	stx2d (nonactivatable)	61
B2F1	O91:H21	Patient with HUS	stx2dact	49
2771/97	ONT: H−	Patient with diarrhea	stx2e	50
T4/97	O128:H2	Pigeon	stx2f	67
EC132	O111:H−	Bovine feces	stx1, stx2, eaeA, and hlyA	Provided by University of Münster, Germany
98NK2	O113:H21	Patient with HUS	lpfAO113, saa, sab	56
38094	O157:H7	Patient with HUS	katP, etpD, tir, espP, espA, espB, lpfAO157/OI154, toxB, and iha	Provided by CDC, Atlanta, GA
C9490	O157:H7	Patient with HUS	lpfA	74