Table 2.
The time from onset of symptoms to stool sample taking.
| Time from the onset of symptoms to sample taking | Bio/serotype 3-4/O:3 or 2/O:9 | Biotype 1A | p-value1 |
|---|---|---|---|
| 0 - 2 weeks | 61% (37/61) | 36% (67/187) | |
| 2 - 4 weeks | 20% (12/61) | 11% (20/187) | |
| 4 - 6 weeks | 8% (5/61) | 6% (11/187) | |
| Over 6 weeks | 0 | 8% (15/187) | |
| Not known2 | 11% (7/61) | 40% (74/187) | |
| mean:(min- max) 3 | 12 days:(1-39) | 25 days:(0 -360) | P = 0.03 |
1 P for the difference between YE bio/serotypes 3-4/O:3 or 2/O:9 and biotype 1A
2 No date or inexact date for the onset of symptoms or sample taken before symptoms began
3Subjects with not known onset of symptoms excluded