Table 2.
stx subtypes, presence of eae and serotype of STEC that could not be detected on CHROMagar
|
Stx subtype |
No. (n=99) |
Serotype |
|---|---|---|
|
Stx1a |
8 |
O91:H14 (3); O117:H7 (4); O152:H8 |
|
Stx1c |
20 |
O78:H4 (4); O81:H21 (2); O126:H8 (2); O76:H19 (6); O128ab:H2; O146:H21; O43:H2; O38:H26 (2); O153-O178:H7 |
|
Stx1a+eae |
8 |
O84:H4 (2); O111:H8 (2); O103:H2 (1); O103:H2 (2); O108:H25 |
|
Stx1a+stx2b |
13 |
O91:H14 (13) |
|
Stx1c+stx2b |
19 |
O76:H19 (2); O128ab:H2 (6); O113:H4 (4); O112:H2; O38:H26 (2); O81:H21; O102:H6; O166:H28; O123:H10 |
|
Stx1a+stx2 c+eae |
1 |
O71:H8 |
|
Stx1a+stx2 a+eae |
4 |
O26:H11 (2): O165:H25 (2) |
|
Stx2b |
17 |
O91:H14 (5); O128ab:H2 (4); O?:H45 (3); O?:H8; O87:H16; O146:H21; O166:H28 (2) |
|
Stx2c |
1 |
O142:H16 |
|
Stx2a |
2 |
O8:H19; O178:H19; |
|
Stx2a+eae |
1 |
O145:H28 |
|
Stx2d |
2 |
O113:H4; O113:H21 |
|
Stx2d+eae |
1 |
O145:H25 |
|
Stx2g |
2 |
O2:H25; O?:H7 |
Serotypes highlighted in bold had the ter gene cluster; they were not detected from the faecal specimen when inoculated directly on to CHROMagar but grew within 24 h on CHROMagar when inoculated from the subculture that was detected using the MacConkey agar using the ten-colony method.