Storage condition between sample collection and analysis | Number of positive test portions collected using neutralizing broths stored under different conditions before usea | ||
---|---|---|---|
Letheen at RT | Letheen at 4 °C | D/E at 4 °C | |
2 h at RT (p = 1)a | 15 | 16 | 15 |
72 h at 4 °C (p = 0.25) | 16 | 17 | 12 |