TABLE 2.
Distribution and frequencies of subAB operon-positive STEC serotypes isolated from dairy/beef cattle, buffalo, and goat
| Serotype | No. of strains tested | No. (%) of subAB- positive strains |
|---|---|---|
| O39:H49a | 11 | 9 (81.8) |
| O44:H25b | 5 | 4 (80) |
| O59:H8c | 1 | 1 (100) |
| O74:H28a | 1 | 1 (100) |
| O74:H−a | 3 | 3 (100) |
| O77:H18b,c | 20 | 14 (70) |
| O79:H14a,b | 35 | 34 (87.1) |
| O79:H28c | 5 | 5 (100) |
| O79:H−a | 8 | 8 (100) |
| O96:H19a | 1 | 1 (100) |
| O96:H21a | 5 | 5 (100) |
| O105:H18b | 9 | 1 (11.1) |
| O113:H21a,b,d | 52 | 36 (69.2) |
| O116:H21a,b,c | 32 | 32 (100) |
| O141:H49b,c | 18 | 18 (100) |
| O153:H25b | 5 | 5 (100) |
| O163:H−a | 1 | 1 (100) |
| O163:H19a,b | 3 | 3 (100) |
| O174:H28a | 1 | 1 (100) |
| O176:H18a | 2 | 2 (100) |
| O178:H18b | 4 | 2 (50) |
| O178:H19a,b,c | 46 | 29 (63.0) |
| O179:H8a,b | 9 | 3 (33.3) |
| ONT:H−a | 18 | 1 (5.5) |
| ONT:H2a | 21 | 2 (9.5) |
| ONT:H7a,c | 53 | 6 (11.3) |
| ONT:H8a,b | 38 | 7 (18.4) |
| ONT:H10a | 4 | 3 (75) |
| ONT:H11a | 4 | 2 (50) |
| ONT:H18c | 14 | 4 (28.6) |
| ONT:H19a,b | 59 | 34 (57.6) |
| ONT:H21a,b,c,d | 64 | 8 (12.5) |
| ONT:H25a | 4 | 2 (50) |
| ONT:H46a,b | 16 | 15 (93.7) |
| ONT:H49a | 4 | 3 (75) |
| OR:H19a | 3 | 1 (33.3) |
| Total | 579 | 306 |
a
Isolated from beef cattle.
b
Isolated from dairy cattle.
c
Isolated from buffalo.
d
Isolated from goat.