Table 1.
Results of E. coli O157 shedding and super-shedding within the cohort over the duration of the sampling period (2012–2013)
| Date and number sampled | % positive (n) | % Super-shedding (n) |
|---|---|---|
| 25 September (57) | 49·1 (28) | 7·0 (4) |
| 8 October (46) | 39·1 (18) | 0 (0) |
| 15 October (47) | 51·1 (24) | 4·2 (2) |
| 22 October (53) | 9·4 (5) | 3·7 (2) |
| 29 October (53) | 18·9 (10) | 0 (0) |
| 5 November (52) | 11·5 (6) | 3·8 (2) |
| 12 November (52) | 23·1 (12) | 1·9 (1) |
| 19 November (52) | 26·9 (14) | 5·7 (3) |
| 26 November (52) | 32·7 (17) | 0 (0) |
| 3 December (52) | 73·1 (38) | 7·6 (4) |
| 10 December (52) | 69·2 (36) | 1·9 (1) |
| 7 January (53) | 32·1 (17) | 0 (0) |
| 14 January (51) | 39·2 (20) | 0 (0) |
| 21 January (52) | 67·3 (35) | 1·9 (1) |
| 30 January (53) | 94·3 (50) | 7·5 (4) |
| 4 February (52) | 61·5 (32) | 9·6 (5) |
| 11 February (52) | 57·7 (30) | 1·9 (1) |
| 18 February (52) | 46·2 (24) | 3·8 (2) |
| Total (933) | 44·6 (416) | 3·4 (32) |