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Table 2 Serotypes, virulence factors and sequence types (STs) of swine STEC isolates

From: Characterization of Shiga toxin-producing Escherichia coli isolated from healthy pigs in China

ST No. of isolates Serotypea stx 2e b hlyA ehxA astA irp2 fyuA paa F18
ST10 2 O2:H32/[H32](1CC, 1SC) + - - - - - - -
ST88 4 ONT:H19/[H19](1SC, 3CC) + - - + + + - -
ST206 3 O143:H38/[H38](3CC) + - - - - - - -
ST361 1 O20:H30 (1CC) + - - + - - - -
1 ONT:H30 (1CC) + - - + - - - -
ST501 2 O86:H11 (2CC) + + - + - - - +
ST540 1 ONT:H30 (1SC) + - - - - - - -
3 ONT:[H30] ( 1SC, 2CC) + - - - - - - -
1 O114:[H30] (1CC) + - - - - - - -
ST641 1 O87:H10 (1SC) + + - - - - - +
ST694 1 ONT:[H33] (1CC) + - - + - - - -
ST710 2 O20:H26 (2 F) + - - + - - - -
17 O20:H30/[H30](4 F, 13CC) + - - + - - - -
1 O20:[H30] (1 F) + - + + - - + -
3 O20:[H30](1 F, 2CC) + - - + - - - -
3 O172:H30/[H30](3CC) + - - + - - - -
ST953 2 ONT:H17 (2CC) + - - - - - + -
ST993 10 ONT:H30 (10CC) + - - - - - - -
2 ONT:H30 (2CC) + - - + - - - -
3 ONT:H30/[H30](2 F, 1CC) + - - - - - - -
ST1294 1 ONT:H30 (1CC) + - - - - - - -
ST1494 2 ONT:H21/[H21](2CC) + - - + - - - -
ST2514 1 O100:H20 (1 F) + - - + - - - -
1 O100:H20 (1SC) + - - + - - + -
5 O100:H20/[H20](1 F,4CC) + - - - - - - -
1 O100:[H20] (1CC) + - + - - - + -
ST3628 9 O2:H32/[H32](9 F) + + - - - - - -
ST3629 4 O9:H30/[H30](4CC) + - - + - - - -
1 ONT:H30 (1CC) + - - + - - - -
ST3630 1 O159:H16 (1CC) - - - + - - + -
ST3633 1 O76:H25 (1 F) + + - - - - - -
ST3631 1 ONT:H7 (1SC) + - - + - - + -
ST3634 1 ONT:H7 (1SC) + - - + - - - -
ST3870 1 O116:H11(1 F) + + - + - - - +
Total 93 93 93 14 2 50 4 4 7 4
  1. aThe numbers and sources are showed in the parentheses. F, fecal samples; CC, colon contents samples; SC, small intestine contents samples. ONT, Not typeable with available O antisera. The H types of non-motility isolates are determined by fliC sequencing and indicated in the square brackets.
  2. bNinety-two STEC isolates were subtyped by primer-specific PCR except one isolate of O159:H16.