Table 1 Serotypes, virulence genes, and hemolytic activity of 101 porcine E. coli isolates
Virulence genes | Total no. of isolates | Serotypes (No. of haemolytic isolates/Total no. of isolates) |
|---|---|---|
LT STb EAST1 F4 F18 | 1 | O149:H10 (1/1) |
LT STb EAST1 F4 | 18 | O8:H19 (1/1), O8:HNT (1/1), O118:H9 (1/1), O149:H10 (14/14), ONT:H19 (1/1) |
LT STb EAST1 | 1 | O8:H14 (0/1) |
STa STb EAST1 F17 F18 | 2 | O147:H- (1/1), ONT:H- (1/1) |
STa STb EAST1 F18 | 5 | O147:H- (3/3), O163:H- (2/2) |
STa STb EAST1 F6 | 5 | O2:H- (1/1), O9:H51 (2/2), O52:H45 (0/1), O64:H- (1/1) |
STa STb | 1 | ONT:H- (0/1) |
STa STb F18 | 7 | O141:H- (1/1), O141:H34 (1/1), O163:H- (3/3), ONT:H- (2/2) |
STa STb Stx2 F18 | 5 | ONT:H4 (5/5) |
STa EAST1 F18 | 1 | ONT:H- (1/1) |
STa EAST1 F5 F41 | 1 | ONT:H9 (0/1) |
STb EAST1 F18 | 1 | ONT:H- (1/1) |
STb EAST1 | 1 | O141:H7 (0/1) |
EAST1 F18 | 13 | O9:H- (1/1), O60:H- (1/1), O163:H- (6/6), O175:H- (1/1), ONT:H- (4/4) |
EAST1 | 16 | O1:H34 (0/1), O9:H51 (4/5), O23:H15 (1/1), O45:H2 (0/2), O54:H- (3/3), O106:H15 (0/1), O123:H40 (0/1), O128:H28 (0/1), ONT:H- (1/1) |
F17 | 1 | O141:H25 (0/1) |
eae (intimin type β1) | 1 | O45:H- (0/1) |
None | 21 | O2:H1 (0/1), O3:H21 (1/1), O9:H51 (2/2), O20:H- (0/2), O23:H- (0/2), O23:H15 (1/1), O26:H28 (0/3), O71:H12 (0/1), O78:H11 (0/1), O84:H- (0/1), O141:H8 (0/1), O149:H10 (1/1), ONT:H- (0/2), ONT:H10 (0/1), ONT:HNT (0/1). |