Table 1. Median number of days from onset of symptoms to specified timeline event for reported Salmonella spp., Shigella spp., Campylobacter spp., and Escherichia coli O157:H7 infections, 6 US states, 2002.
| Timeline event | Median no. days after symptom onset |
|||
|---|---|---|---|---|
| Salmonella spp. | Shigella spp. | Campylobacter spp. | E. coli O157 | |
| Collection of stool sample | 4 | 2 | 3 | 3 |
| Stool culture result | 7 | 6 | 8 | 5 |
| Case report from clinician to health department | 9 | 8 | 9 | 7 |
| Submission of isolate to public health laboratory | 10 | 8 | 10 | 8 |
| Case interview | 14 | 14 | 18 | 12 |
| PFGE* subtyping | 18 | 21 | Not routinely performed | 15 |
*PFGE, pulsed-field gel electrophoresis.