TABLE 5.

cSTEC serotypes isolated in longitudinal herd studies

SerotypeaPreviously reportedbNo. of isolates (no. of cattle infected)Virulence factor profileNo. of infected cattle
Pasture beefFeedlot
DamsCalvesInduction2 moPreslaughter
< 6 wk oldPreweaningPostweaning
O2:H−Yes1 (1) stx 2, ehxA1
O2:H6Yes1 (1) stx 2, ehxA1
O2:H8No1 (1) stx 2, ehxA1
O3:H7No1 (1) stx 1, stx2, ehxA1
O5:H−Yes1 (1) stx 1, stx2, ehxA1
O5:H7No4 (3) stx 1, stx2, ehxA3
O6:H34Yes4 (3) stx 2, ehxA111
O8:H19Yes6 (6) stx 2, ehxA231
O26:H11Yes5 (4) stx 1, ehxA31
1 (1) stx 1, eae, ehxA1
O28:H8No3 (3) stx 2, ehxA12
O68:H−No1 (1) stx 1, ehxA1
O75:H1No1 (1) stx 1, ehxA1
O76:H7No1 (1) stx 1, stx2, ehxA1
O81:H21No1 (1) stx 2, ehxA1
O82:H8Yes7 (7) stx 1, stx2, ehxA232
O82:H40No2 (2) stx 1, stx2, ehxA11
O84:H−Yes1 (1) stx 1, eae, ehxA1
O91:H−Yes1 (1) stx 1, stx2, ehxA1
O101:H39No1 (1) stx 1, stx2, ehxA1
O103:H14No1 (water) stx 2, ehxA
O108:H7No5 (4) stx 1, stx2, ehxA13
O113:H−Yes1 (1) stx 2, ehxA1
O113:H21Yes14 (13) stx 2, ehxA3226
2 (2) stx 1, stx2, ehxA2
O130:H11No5 (3) stx 2, ehxA11
1 (1) stx 1, stx2, ehxA1
1 (water) stx 1, stx2, ehxA
O130:H38No3 (2) stx 1, stx2, ehxA2
O153:H8Yes1 (1) stx 1, stx2, ehxA1
O154:H−No1 (water) stx 1, stx2, eaeA, ehxA
O157:H−Yes1 (1) stx 1, stx2, eaeA, ehxA1
O160:H10No1 (1) stx 2, ehxA1
O163:H19Yes1 (1) stx 1, stx2, ehxA1
Ont:H−Yes2 (1) stx 2, ehxA1
1 (1) stx 2, eaeA, ehxA1
Ont:H2Yes1 (1) stx 2, ehxA1
Ont:H8Yes2 (1) stx 1, stx2, ehxA1
6 (5) stx 2, ehxA212
Ont:H11No2 (2) stx 2, ehxA2
2 (1) stx 1, ehxA1
1 (1) stx 1, stx2, ehxA1
Ont:H14No1 (water) stx 2, ehxA
Ont:H21Yes1 (1) stx 1, stx2, ehxA1
Ont:H28Yes1 (1) stx 2, ehxA1
1 (1) stx 2, eaeA, ehxA1
Ont:H32Yes1 (1) stx 2, ehxA1
Ont:H41No2 (1) stx 1, eaeA, ehxA1
Ont:H49No2 (1) stx 2, ehxA1
1 (1) stx 2, ehxA1
Ont:HRYes3 (3) stx 2, ehxA21
OR:H8Yes1 (1) stx 2, ehxA1
OR:H31No1 (1) stx 1, stx2, eaeA, ehxA1
OR:H39No1 (1) stx 1, stx2, ehxA1
OR:H−Yes1 (1) stx 2, ehxA1
1 (1) stx 1, eaeA, ehxA1
OX3:H8Yes4 (3) stx 2, ehxA1?1?2
1 (1) stx 1, stx2, ehxA1
OX3:H40No1 (1) stx 2, ehxA1