TABLE 2.
Fate of E. coli O157:H7 strains in PBS
| Temp (°C) | Day | No. of cells (log CFU/ml) for each strain
|
||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | ||
| 4 | 0 | 6.4 | 6.1 | 6.5 | 6.5 | 6.5 | 6.5 | 6.7 | 7.0 | 6.5 | 6.4 | 6.3 | 6.5 | 5.9 | 6.1 | 6.4 | 6.4 | 6.7 | 6.6 | 6.6 |
| 2 | 5.8 | 5.2 | 5.8 | 5.8 | 5.8 | 5.3 | 5.5 | 6.1 | 5.9 | 5.8 | 5.8 | 6.2 | 5.6 | 5.7 | 6.0 | 5.9 | 6.0 | 5.6 | 5.8 | |
| 21 | 5.1 | 4.9 | 5.2 | 5.2 | 5.0 | 5.2 | 5.3 | 6.0 | 4.4 | 5.1 | 5.0 | 5.4 | 5.0 | 4.1 | 5.4 | 4.8 | 5.4 | 5.4 | 4.9 | |
| 42 | 5.4 | 5.2 | 4.9 | 5.3 | 5.3 | 5.5 | 5.5 | 5.8 | 5.4 | 5.1 | 5.1 | 5.8 | 4.7 | 5.2 | 5.5 | 4.5 | 5.7 | 5.3 | 4.3 | |
| 105 | 3.8 | 2.9 | 2.2 | 4.5 | 3.7 | 3.9 | 2.2 | 5.1 | 1.3 | 1.5 | 1.2 | 4.0 | 2.0 | 2.0 | 1.0 | ND | 4.0 | 3.5 | 1.9 | |
| 230 | 1.0 | NDa | ND | ND | 1.7 | ND | ND | 4.7 | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | |
| 18 | 0 | 5.8 | 5.4 | 5.9 | 6.2 | 6.4 | 6.0 | 6.1 | 6.8 | 6.4 | 6.3 | 6.0 | 6.8 | 5.7 | 5.9 | 6.5 | 5.7 | 6.2 | 5.7 | 6.2 |
| 2 | 5.8 | 5.0 | 6.1 | 5.4 | 6.0 | 5.5 | 6.1 | 6.2 | 6.0 | 5.9 | 5.5 | 7.0 | 6.1 | 5.1 | 6.1 | 6.1 | 6.0 | 5.7 | 5.9 | |
| 21 | 5.0 | 3.6 | 5.4 | 5.3 | 5.2 | 5.8 | 5.9 | 6.1 | 6.4 | 5.3 | 4.0 | 5.3 | 4.3 | 4.3 | 5.7 | 3.6 | 5.1 | 5.3 | 5.4 | |
| 42 | 5.4 | 4.9 | 5.3 | 5.4 | 5.5 | 5.4 | 5.4 | 5.7 | 5.4 | 5.4 | 4.1 | 4.3 | 4.3 | 4.9 | 5.4 | 4.0 | 4.9 | 4.6 | 5.3 | |
| 105 | 5.0 | 4.9 | 4.8 | 4.6 | 4.9 | 4.9 | 4.8 | 4.4 | 5.0 | 5.3 | 4.3 | 4.6 | 4.7 | 4.6 | 4.6 | 4.7 | 4.9 | 4.6 | 4.9 | |
| 230 | 5.6 | 4.6 | 5.0 | 4.8 | 4.7 | 5.3 | 5.4 | 5.0 | 5.0 | 5.6 | 4.6 | 4.6 | 5.0 | 5.3 | 4.3 | 4.5 | 4.9 | 4.9 | 5.4 | |
a
ND, not detected (<0.3 log CFU/ml).