Time | Number of specimens positive | Cumulative number of specimens positive |
5 h | 22 | 22 |
6 h | 26 | 48 |
7 h | 15 | 63 |
8 h | 21 | 84 |
9 h | 33 | 117 |
10 h | 17 | 134 |
16 h | 83 | 217 |
18 h | 18 | 235 |
20 h | 15 | 250 |